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taylor | Lisp-like functional language | Functional Programming library

 by   loredanacirstea JavaScript Version: Current License: GPL-3.0

 by   loredanacirstea JavaScript Version: Current License: GPL-3.0

Download this library from

kandi X-RAY | taylor Summary

taylor is a JavaScript library typically used in Financial Services, Fintech, Programming Style, Functional Programming, Ethereum applications. taylor has no bugs, it has no vulnerabilities, it has a Strong Copyleft License and it has low support. You can download it from GitHub.
Examples to try out: (!only one line at a time).
Support
Support
Quality
Quality
Security
Security
License
License
Reuse
Reuse

kandi-support Support

  • taylor has a low active ecosystem.
  • It has 28 star(s) with 3 fork(s). There are 7 watchers for this library.
  • It had no major release in the last 12 months.
  • There are 42 open issues and 16 have been closed. On average issues are closed in 4 days. There are 18 open pull requests and 0 closed requests.
  • It has a neutral sentiment in the developer community.
  • The latest version of taylor is current.
taylor Support
Best in #Functional Programming
Average in #Functional Programming
taylor Support
Best in #Functional Programming
Average in #Functional Programming

quality kandi Quality

  • taylor has 0 bugs and 0 code smells.
taylor Quality
Best in #Functional Programming
Average in #Functional Programming
taylor Quality
Best in #Functional Programming
Average in #Functional Programming

securitySecurity

  • taylor has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
  • taylor code analysis shows 0 unresolved vulnerabilities.
  • There are 0 security hotspots that need review.
taylor Security
Best in #Functional Programming
Average in #Functional Programming
taylor Security
Best in #Functional Programming
Average in #Functional Programming

license License

  • taylor is licensed under the GPL-3.0 License. This license is Strong Copyleft.
  • Strong Copyleft licenses enforce sharing, and you can use them when creating open source projects.
taylor License
Best in #Functional Programming
Average in #Functional Programming
taylor License
Best in #Functional Programming
Average in #Functional Programming

buildReuse

  • taylor releases are not available. You will need to build from source code and install.
  • Installation instructions are not available. Examples and code snippets are available.
  • taylor saves you 31 person hours of effort in developing the same functionality from scratch.
  • It has 84 lines of code, 0 functions and 49 files.
  • It has low code complexity. Code complexity directly impacts maintainability of the code.
taylor Reuse
Best in #Functional Programming
Average in #Functional Programming
taylor Reuse
Best in #Functional Programming
Average in #Functional Programming
Top functions reviewed by kandi - BETA

Coming Soon for all Libraries!

Currently covering the most popular Java, JavaScript and Python libraries. See a SAMPLE HERE.
kandi's functional review helps you automatically verify the functionalities of the libraries and avoid rework.

taylor Key Features

Measure twice, cut once. Lisp-like functional language for computable & immutable specifications, interpreted by WebAssembly & the Ethereum Virtual Machine.

taylor

copy iconCopydownload iconDownload
(add (add (sub 7 2) 1) 41)
(list 5 4 (add 6 2) 3 (sub 6 1))
(if (gt 4 9) ((fn* (a b) (add a b)) 2 3) (add (sub 7 2) 1))

# define and use lambdas in-memory
( (fn* (a b) (add (mul a b ) b)) 2 3)

# define and store functions on-chain
(def! myfunction (fn* (a b) (add (add (sub a b) a) b)))

# use a stored function; notice the _
(_myfunction 5 3)

(concat "0x11aaaabb" "0x221111ccdd")
(contig 2 "0x221111ccdd")

(def! fib (fn* (n) (if (or (eq n 1) (eq n 2)) 1 (add(_fib (sub n 1)) (_fib (sub n 2)) ) )))

# higher order functions
(map _fib (list 5 8 2))

Ballot

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(list 
    ; weight, voted, delegate, vote (proposal index)
    (defstruct! Voter (list Uint Bool Address Uint))
    
    ; name, voteCount
    (defstruct! Proposal (list String32 Uint) )

    (defmap! "voters" Address "Voter")
    
    ; (name! chairperson (save! (caller)))
    (store! 0 (caller))

    (def! giveRightToVote! (fn* (voterAddress)
        (if (eq (caller) (sload 0 Address))
            (if (nil? (mapget voters voterAddress))
                (mapset! voters voterAddress (struct! Voter (list 1 false "0x0000000000000000000000000000000000000000" 0)))
                (revert "The voter already voted.")
            )
            (revert "Only chairperson can give right to vote.")
        )
    ))

    (def! recDelegation (fn* (to_address)
        (let* (
                delegate_raw (mapget voters to_address)
                delegate (list-struct delegate_raw)
            )
            (if (nil? delegate)
                ; (revert "Delegate cannot vote")
                (revert to_address)
                (let* (delegateOfDelegate (nth delegate 2))
                    (if (or
                            (nil? delegateOfDelegate)
                            (eq delegateOfDelegate "0x0000000000000000000000000000000000000000")
                        )
                        to_address
                        (if (eq delegateOfDelegate (caller))
                            (revert "Found loop in delegation.")
                            (recDelegation delegateOfDelegate)
                        )
                    )
                )
            )
        )
    ))

    (def! delegate! (fn* (to_address)
        (let* (
                sender_raw (mapget voters (caller))
                sender (list-struct sender_raw)
                sender_types (defstruct Voter)
                sender_indexes (refs-struct sender_raw)
            )
            (if (true? (nth sender 1))
                (revert "You already voted.")
                (if (eq to_address (caller))
                    (revert "Self-delegation is disallowed.")
                    (let* (
                            delegateAddress (recDelegation to_address)
                            delegate_raw (mapget voters delegateAddress)
                            delegate (list-struct delegate_raw)
                        )
                        (list
                            ; sender.voted = true
                            (update! (nth sender_types 1) (nth sender_indexes 1) true)
                            ; sender.delegate = to
                            (update! (nth sender_types 2) (nth sender_indexes 2) delegateAddress)
                            (if (true? (nth delegate 1))
                                ; proposals[delegate_.vote].voteCount += sender.weight
                                (let* (
                                        proposal_raw (getfrom Proposal (nth delegate 3))
                                        proposal (list-struct proposal_raw)
                                        proposal_types (defstruct Proposal)
                                        proposal_indexes (refs-struct proposal_raw)
                                    )
                                    (update! (nth proposal_types 1) (nth proposal_indexes 1) (add (nth sender 0) (nth proposal 1)))
                                )

                                ; delegate_.weight += sender.weight
                                (let* (
                                        delegate_types (defstruct Voter)
                                        delegate_indexes (refs-struct delegate_raw)
                                    )
                                    (update! (nth delegate_types 0) (nth delegate_indexes 0) (add (nth delegate 0) (nth sender 0)))
                                )
                            )
                        )
                    )
                )
            )
        )
    ))

    (def! vote! (fn* (proposalIndex)
        (let* (
                sender_raw (mapget voters (caller))
                ; values for: weight, voted, delegate, vote
                sender (list-struct sender_raw)
                
                ; types for: weight, voted, delegate, vote
                sender_types (defstruct Voter)
                
                ; DB index for each struct component
                sender_indexes (refs-struct sender_raw)
                
                proposal_raw (getfrom Proposal proposalIndex)
                ; values: name, voteCount
                proposal (list-struct proposal_raw)
                proposal_types (defstruct Proposal)
                proposal_indexes (refs-struct proposal_raw)
            )
            (if (or 
                    (or (nil? sender) (true? (nth sender 1)))
                    (lt (nth sender 0) 1)
                )
                (revert "Has no right to vote")
                (list
                    ; sender.voted = true
                    (update! (nth sender_types 1) (nth sender_indexes 1) true)
                    ; sender.vote = proposal
                    (update! (nth sender_types 3) (nth sender_indexes 3) proposalIndex)
                    
                    ; proposals[proposal].voteCount += sender.weight
                    (update! (nth proposal_types 1) (nth proposal_indexes 1) (add (nth sender 0) (nth proposal 1)))
                )
            )
        )
    ))

    (list
        (struct! Proposal (list "proposal1" 0))
        (struct! Proposal (list "proposal2" 0))
        (struct! Proposal (list "proposal3" 0))
    )
)

get values from a taylor.diagram in R

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Metrics::rmse(ref,model)
stats::cor(ref,model, method= c('pearson))
sd(ref)

How do I redirect to an External Link in react?

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<a target='_blank' href={}>
        Link
</a>
-----------------------
<Link to={{ pathname: "/image", src: props.src }}>
<ImageContainer id={props.id} key={props.id} src={props.location.src} />
<Link to={{ pathname: "/image", state: { url: props.src } }}>
-----------------------
<Link to={{ pathname: "/image", src: props.src }}>
<ImageContainer id={props.id} key={props.id} src={props.location.src} />
<Link to={{ pathname: "/image", state: { url: props.src } }}>
-----------------------
<Link to={{ pathname: "/image", src: props.src }}>
<ImageContainer id={props.id} key={props.id} src={props.location.src} />
<Link to={{ pathname: "/image", state: { url: props.src } }}>
-----------------------
function App(props) {
  return (
    <>
      <Router>
        <Switch>
          <Route path="/gallery" component={GalleryList} />
          <Route path="/image" component={Image} />
          <Route path="/" component={Home} />
        </Switch>
      </Router>
    </>
  );
}
import { Link } from "react-router-dom";

...

<Link to="/gallery">
  <h4>Click Here to Enter Gallery!</h4>
</Link>
import { Link } from "react-router-dom";

...

<Link to="/">Home</Link>
const GalleryConatiner = (props) => {
  return (
    // generates the gallery list!
    <ul>
      <li className={styles["gallery-list"]}>
        <Link
          to={{ pathname: "/image", state: { id: props.id, src: props.src } }}
        >
          <div
            className={styles["div-gallery"]}
            style={{
              backgroundImage: `url(${props.src})`,
              height: 250,
              backgroundSize: "cover"
            }}
          ></div>
        </Link>
      </li>
    </ul>
  );
};
import { Link, useLocation } from 'react-router-dom';

const Image = (props) => {
  const { state: { id, src } = {} } = useLocation();
  return (
    <section>
      <h1 className={styles["h1-wrapper"]}>Image :{id}</h1>
      <div className={styles.wrapper}>
        <Link to="/gallery">BACK TO GALLERY</Link>
        <ImageContainer id={id} key={id} src={src} />
      </div>
    </section>
  );
};
-----------------------
function App(props) {
  return (
    <>
      <Router>
        <Switch>
          <Route path="/gallery" component={GalleryList} />
          <Route path="/image" component={Image} />
          <Route path="/" component={Home} />
        </Switch>
      </Router>
    </>
  );
}
import { Link } from "react-router-dom";

...

<Link to="/gallery">
  <h4>Click Here to Enter Gallery!</h4>
</Link>
import { Link } from "react-router-dom";

...

<Link to="/">Home</Link>
const GalleryConatiner = (props) => {
  return (
    // generates the gallery list!
    <ul>
      <li className={styles["gallery-list"]}>
        <Link
          to={{ pathname: "/image", state: { id: props.id, src: props.src } }}
        >
          <div
            className={styles["div-gallery"]}
            style={{
              backgroundImage: `url(${props.src})`,
              height: 250,
              backgroundSize: "cover"
            }}
          ></div>
        </Link>
      </li>
    </ul>
  );
};
import { Link, useLocation } from 'react-router-dom';

const Image = (props) => {
  const { state: { id, src } = {} } = useLocation();
  return (
    <section>
      <h1 className={styles["h1-wrapper"]}>Image :{id}</h1>
      <div className={styles.wrapper}>
        <Link to="/gallery">BACK TO GALLERY</Link>
        <ImageContainer id={id} key={id} src={src} />
      </div>
    </section>
  );
};
-----------------------
function App(props) {
  return (
    <>
      <Router>
        <Switch>
          <Route path="/gallery" component={GalleryList} />
          <Route path="/image" component={Image} />
          <Route path="/" component={Home} />
        </Switch>
      </Router>
    </>
  );
}
import { Link } from "react-router-dom";

...

<Link to="/gallery">
  <h4>Click Here to Enter Gallery!</h4>
</Link>
import { Link } from "react-router-dom";

...

<Link to="/">Home</Link>
const GalleryConatiner = (props) => {
  return (
    // generates the gallery list!
    <ul>
      <li className={styles["gallery-list"]}>
        <Link
          to={{ pathname: "/image", state: { id: props.id, src: props.src } }}
        >
          <div
            className={styles["div-gallery"]}
            style={{
              backgroundImage: `url(${props.src})`,
              height: 250,
              backgroundSize: "cover"
            }}
          ></div>
        </Link>
      </li>
    </ul>
  );
};
import { Link, useLocation } from 'react-router-dom';

const Image = (props) => {
  const { state: { id, src } = {} } = useLocation();
  return (
    <section>
      <h1 className={styles["h1-wrapper"]}>Image :{id}</h1>
      <div className={styles.wrapper}>
        <Link to="/gallery">BACK TO GALLERY</Link>
        <ImageContainer id={id} key={id} src={src} />
      </div>
    </section>
  );
};
-----------------------
function App(props) {
  return (
    <>
      <Router>
        <Switch>
          <Route path="/gallery" component={GalleryList} />
          <Route path="/image" component={Image} />
          <Route path="/" component={Home} />
        </Switch>
      </Router>
    </>
  );
}
import { Link } from "react-router-dom";

...

<Link to="/gallery">
  <h4>Click Here to Enter Gallery!</h4>
</Link>
import { Link } from "react-router-dom";

...

<Link to="/">Home</Link>
const GalleryConatiner = (props) => {
  return (
    // generates the gallery list!
    <ul>
      <li className={styles["gallery-list"]}>
        <Link
          to={{ pathname: "/image", state: { id: props.id, src: props.src } }}
        >
          <div
            className={styles["div-gallery"]}
            style={{
              backgroundImage: `url(${props.src})`,
              height: 250,
              backgroundSize: "cover"
            }}
          ></div>
        </Link>
      </li>
    </ul>
  );
};
import { Link, useLocation } from 'react-router-dom';

const Image = (props) => {
  const { state: { id, src } = {} } = useLocation();
  return (
    <section>
      <h1 className={styles["h1-wrapper"]}>Image :{id}</h1>
      <div className={styles.wrapper}>
        <Link to="/gallery">BACK TO GALLERY</Link>
        <ImageContainer id={id} key={id} src={src} />
      </div>
    </section>
  );
};
-----------------------
function App(props) {
  return (
    <>
      <Router>
        <Switch>
          <Route path="/gallery" component={GalleryList} />
          <Route path="/image" component={Image} />
          <Route path="/" component={Home} />
        </Switch>
      </Router>
    </>
  );
}
import { Link } from "react-router-dom";

...

<Link to="/gallery">
  <h4>Click Here to Enter Gallery!</h4>
</Link>
import { Link } from "react-router-dom";

...

<Link to="/">Home</Link>
const GalleryConatiner = (props) => {
  return (
    // generates the gallery list!
    <ul>
      <li className={styles["gallery-list"]}>
        <Link
          to={{ pathname: "/image", state: { id: props.id, src: props.src } }}
        >
          <div
            className={styles["div-gallery"]}
            style={{
              backgroundImage: `url(${props.src})`,
              height: 250,
              backgroundSize: "cover"
            }}
          ></div>
        </Link>
      </li>
    </ul>
  );
};
import { Link, useLocation } from 'react-router-dom';

const Image = (props) => {
  const { state: { id, src } = {} } = useLocation();
  return (
    <section>
      <h1 className={styles["h1-wrapper"]}>Image :{id}</h1>
      <div className={styles.wrapper}>
        <Link to="/gallery">BACK TO GALLERY</Link>
        <ImageContainer id={id} key={id} src={src} />
      </div>
    </section>
  );
};

Laravel App not running on xampp or live server but works well on php artisan serve

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|-.htaccess  
|-favicon.ico  
|-index.php  
|-robots.txt  
|-web.config   
\---laravel
if (file_exists(__DIR__.'/laravel/storage/framework/maintenance.php'))   
{  
    require __DIR__.'/laravel/storage/framework/maintenance.php';  
}
-----------------------
|-.htaccess  
|-favicon.ico  
|-index.php  
|-robots.txt  
|-web.config   
\---laravel
if (file_exists(__DIR__.'/laravel/storage/framework/maintenance.php'))   
{  
    require __DIR__.'/laravel/storage/framework/maintenance.php';  
}

How to retrieve data for two foreign key ID and one same base table in MySQL?

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SELECT
  owner.first_name, owner.last_name, 
  recipient.first_name, recipient.last_name 
FROM tbl_messages AS msgs 
JOIN tbl_users AS owner ON owner.id = msgs.owner_user_id 
JOIN tbl_users AS recipient ON recipient.id = msgs.recipient_user_id;

Redux: Component is not updating after state is updated

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useEffect(() => {
  this.artistList = store.getState();
}, [store.getState()]); // kind of watcher of store.getState()
-----------------------
import { Provider, connect } from 'react-redux'

import './App.css';
import store from './store'
import { trackAdded } from './actions'

function App(props) {
  const add = (title) => {
    store.dispatch(trackAdded(title, "Taylor Swift", "src", "image"))
    console.log(store.getState())
  }
  
  return (
    <Provider store={store}>
      <div className="App">
        {props.tracks.map((track, track_id) => {
          return (
            <li key={track_id}>{track.title}</li>
          )
        })}
        <button onClick={() => { add("Shake It Off") }}>Add Track</button>
      </div>
    </Provider>
  );
}

const mapStateToProps = (state) => {
  const tracks = state
  return { tracks }
}

export default connect(mapStateToProps)(App);

Map function is not setting value to each element

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const [tracks, setTracks] = useState([]);
const [playerTracks, setPlayerTracks] = useState([])

const playTracks = () => {
    setPlayerTracks(
        { id: 8, track_name: "Bad Guy", url: "001.mp3", artwork: "001.jpg", artist: "Ed Sheeran" },
        { id: 9, track_name: "Bury A Friend", url: "002.mp3" , artwork: "002.jpg", artist: "Taylor Swift"}
    )

    const newTracks = playerTracks.map(track => {
        return {
            title: track.track_name,
            artist: track.artist_name,
            audioSrc: track.url,
            image: track.artwork
        };
    })
    setTracks(newTracks);
}

Creating a CSV File from a Wikipedia table using Beautiful Soup

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import pandas as pd


url = "https://en.wikipedia.org/wiki/List_of_winners_and_shortlisted_authors_of_the_Booker_Prize"
df = pd.read_html(url)[0][["Year", "Author", "Title"]]
print(df)
                                                  Year                Author                                        Title
0                                                 1969           P. H. Newby                      Something to Answer For
1                                                 1969         Barry England                       Figures in a Landscape
2                                                 1969       Nicholas Mosley                        The Impossible Object
3                                                 1969          Iris Murdoch                        The Nice and the Good
4                                                 1969          Muriel Spark                             The Public Image
5                                                 1969       Gordon Williams                       From Scenes Like These
6                                                 1970        Bernice Rubens                           The Elected Member
7                                                 1970          A. L. Barker                            John Brown's Body
8                                                 1970       Elizabeth Bowen                                    Eva Trout
9                                                 1970          Iris Murdoch                                Bruno's Dream
10                                                1970        William Trevor               Mrs Eckdorf in O'Neill's Hotel
11                                                1970       Terence Wheeler                              The Conjunction
12   1970 Awarded in 2010 as the Lost Man Booker Pr...         J. G. Farrell                                     Troubles
13   1970 Awarded in 2010 as the Lost Man Booker Pr...           Nina Bawden                       The Birds on the Trees
14   1970 Awarded in 2010 as the Lost Man Booker Pr...       Shirley Hazzard                              The Bay of Noon
15   1970 Awarded in 2010 as the Lost Man Booker Pr...          Mary Renault                             Fire From Heaven
16   1970 Awarded in 2010 as the Lost Man Booker Pr...          Muriel Spark                            The Driver's Seat
17   1970 Awarded in 2010 as the Lost Man Booker Pr...         Patrick White                               The Vivisector

...
df.to_csv("data.csv", index=None)
-----------------------
import pandas as pd


url = "https://en.wikipedia.org/wiki/List_of_winners_and_shortlisted_authors_of_the_Booker_Prize"
df = pd.read_html(url)[0][["Year", "Author", "Title"]]
print(df)
                                                  Year                Author                                        Title
0                                                 1969           P. H. Newby                      Something to Answer For
1                                                 1969         Barry England                       Figures in a Landscape
2                                                 1969       Nicholas Mosley                        The Impossible Object
3                                                 1969          Iris Murdoch                        The Nice and the Good
4                                                 1969          Muriel Spark                             The Public Image
5                                                 1969       Gordon Williams                       From Scenes Like These
6                                                 1970        Bernice Rubens                           The Elected Member
7                                                 1970          A. L. Barker                            John Brown's Body
8                                                 1970       Elizabeth Bowen                                    Eva Trout
9                                                 1970          Iris Murdoch                                Bruno's Dream
10                                                1970        William Trevor               Mrs Eckdorf in O'Neill's Hotel
11                                                1970       Terence Wheeler                              The Conjunction
12   1970 Awarded in 2010 as the Lost Man Booker Pr...         J. G. Farrell                                     Troubles
13   1970 Awarded in 2010 as the Lost Man Booker Pr...           Nina Bawden                       The Birds on the Trees
14   1970 Awarded in 2010 as the Lost Man Booker Pr...       Shirley Hazzard                              The Bay of Noon
15   1970 Awarded in 2010 as the Lost Man Booker Pr...          Mary Renault                             Fire From Heaven
16   1970 Awarded in 2010 as the Lost Man Booker Pr...          Muriel Spark                            The Driver's Seat
17   1970 Awarded in 2010 as the Lost Man Booker Pr...         Patrick White                               The Vivisector

...
df.to_csv("data.csv", index=None)
-----------------------
import pandas as pd


url = "https://en.wikipedia.org/wiki/List_of_winners_and_shortlisted_authors_of_the_Booker_Prize"
df = pd.read_html(url)[0][["Year", "Author", "Title"]]
print(df)
                                                  Year                Author                                        Title
0                                                 1969           P. H. Newby                      Something to Answer For
1                                                 1969         Barry England                       Figures in a Landscape
2                                                 1969       Nicholas Mosley                        The Impossible Object
3                                                 1969          Iris Murdoch                        The Nice and the Good
4                                                 1969          Muriel Spark                             The Public Image
5                                                 1969       Gordon Williams                       From Scenes Like These
6                                                 1970        Bernice Rubens                           The Elected Member
7                                                 1970          A. L. Barker                            John Brown's Body
8                                                 1970       Elizabeth Bowen                                    Eva Trout
9                                                 1970          Iris Murdoch                                Bruno's Dream
10                                                1970        William Trevor               Mrs Eckdorf in O'Neill's Hotel
11                                                1970       Terence Wheeler                              The Conjunction
12   1970 Awarded in 2010 as the Lost Man Booker Pr...         J. G. Farrell                                     Troubles
13   1970 Awarded in 2010 as the Lost Man Booker Pr...           Nina Bawden                       The Birds on the Trees
14   1970 Awarded in 2010 as the Lost Man Booker Pr...       Shirley Hazzard                              The Bay of Noon
15   1970 Awarded in 2010 as the Lost Man Booker Pr...          Mary Renault                             Fire From Heaven
16   1970 Awarded in 2010 as the Lost Man Booker Pr...          Muriel Spark                            The Driver's Seat
17   1970 Awarded in 2010 as the Lost Man Booker Pr...         Patrick White                               The Vivisector

...
df.to_csv("data.csv", index=None)
-----------------------
import csv
import lxml
import requests
from bs4 import BeautifulSoup

url = 'https://en.wikipedia.org/wiki/List_of_winners_and_shortlisted_authors_of_the_Booker_Prize'

page = requests.get(url) 
soup = BeautifulSoup(page.text, "lxml")
with open('output.csv', 'w', newline="") as file:
    writer = csv.writer(file)
    writer.writerow(['Year','Author','Title'])
    for row in soup.select('table.wikitable > tbody > tr')[1:]:
        try:
            year = row.select_one("td[rowspan]").get_text(strip=True)
        except AttributeError: year = ""
        try:
            author = row.select_one("td:not([rowspan]) > a[title]").get_text(strip=True)
        except AttributeError: author = ""
        try:
            title = row.select_one("td > i > a[title], td > i").get_text(strip=True)
        except AttributeError: title = ""
        writer.writerow([year,author,title])
        print(year,author,title)

How to get distinct objects from an Array

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const
    tracks = { artist_0: { id: 1, atist_name: "Taylor Swift" }, artist_1: { id: 1, artist_name: "Taylor Swift" }, artist_2: { id: 2, artist_name: "Ed Sheeran" } },
    result = Object.fromEntries(Object
        .entries(tracks)
        .filter(
            (s => ([, { id }]) => !s.has(id) && s.add(id))
            (new Set)
        )
    );

console.log(result);
.as-console-wrapper { max-height: 100% !important; top: 0; }
-----------------------
const
    tracks = { artist_0: { id: 1, atist_name: "Taylor Swift" }, artist_1: { id: 1, artist_name: "Taylor Swift" }, artist_2: { id: 2, artist_name: "Ed Sheeran" } },
    result = Object.fromEntries(Object
        .entries(tracks)
        .filter(
            (s => ([, { id }]) => !s.has(id) && s.add(id))
            (new Set)
        )
    );

console.log(result);
.as-console-wrapper { max-height: 100% !important; top: 0; }
-----------------------
const data = {
  "tracks": {
    "artist_0": { "id": 1 , "artist_name": "Taylor Swift" },
    "artist_1": { "id": 1 , "artist_name": "Taylor Swift" },
    "artist_2": { "id": 2 , "artist_name": "Ed Sheeran"   }
  }
}

const filterUnique = (arr, keyFn) =>
  Object.entries(arr)
    .reduce((acc, [key, item]) => (id =>
      !acc.ban.has(id) ? {
        res: { ...acc.res, [key]: item },
        ban: acc.ban.add(id)
      } : acc)
    (keyFn(item)),
    { res: {}, ban: new Set })
  .res;

const uniqueData = {
  tracks: filterUnique(data.tracks, ({ id, artist_name }) => `${id}-${artist_name}`)
};

console.log(uniqueData);
.as-console-wrapper { top: 0; max-height: 100% !important; }
-----------------------
const data = {
  "tracks": {
    "artist_0": { "id": 1 , "artist_name": "Taylor Swift" },
    "artist_1": { "id": 1 , "artist_name": "Taylor Swift" },
    "artist_2": { "id": 2 , "artist_name": "Ed Sheeran"   }
  }
}

const filterUnique = (arr, keyFn) =>
  Object.entries(arr)
    .reduce((acc, [key, item]) => (id =>
      !acc.ban.has(id) ? {
        res: { ...acc.res, [key]: item },
        ban: acc.ban.add(id)
      } : acc)
    (keyFn(item)),
    { res: {}, ban: new Set })
  .res;

const uniqueData = {
  tracks: filterUnique(data.tracks, ({ id, artist_name }) => `${id}-${artist_name}`)
};

console.log(uniqueData);
.as-console-wrapper { top: 0; max-height: 100% !important; }
-----------------------
const byUnique = (fn, found = new Set()) => (x) => 
  ((key = fn(x)) => found.has(key) ? false : found. add (key))()

const artistId = ({artist: {id}}) => id

const tracks = [{id: 1, artist: {id: 1, artist_name: "Taylor Swift"}, album: {id: 1, album_name: "Fearless (Taylor's Version)"}, track_name: "Love Story", time: "00: 03: 49", genre: "POP"}, {id: 2, artist: {id: 1, artist_name: "Taylor Swift"}, album: {id: 1, album_name: "Fearless (Taylor's Version)"}, track_name: "You Belong With Me", time: "00: 03: 40", genre: "POP"}, {id: 4, artist: {id: 2, artist_name: "Ed Sheeran"}, album: {id: 2, album_name: "Divide"}, track_name: "Perfect", time: "00: 04: 23", genre: "POP"}]

console .log (
  tracks .filter (byUnique (artistId))
)
.as-console-wrapper {max-height: 100% !important; top: 0}
const byUnique = (fn) => (found = new Set()) => (x) => 
  ((key = fn(x)) => found.has(key) ? false : found. add (key))()
tracks .filter (byUnique (artistId) ())
const byUniqueArtistId = byUnique (artistId)
// later
tracks .filter (byUniqueArtistId ())
-----------------------
const byUnique = (fn, found = new Set()) => (x) => 
  ((key = fn(x)) => found.has(key) ? false : found. add (key))()

const artistId = ({artist: {id}}) => id

const tracks = [{id: 1, artist: {id: 1, artist_name: "Taylor Swift"}, album: {id: 1, album_name: "Fearless (Taylor's Version)"}, track_name: "Love Story", time: "00: 03: 49", genre: "POP"}, {id: 2, artist: {id: 1, artist_name: "Taylor Swift"}, album: {id: 1, album_name: "Fearless (Taylor's Version)"}, track_name: "You Belong With Me", time: "00: 03: 40", genre: "POP"}, {id: 4, artist: {id: 2, artist_name: "Ed Sheeran"}, album: {id: 2, album_name: "Divide"}, track_name: "Perfect", time: "00: 04: 23", genre: "POP"}]

console .log (
  tracks .filter (byUnique (artistId))
)
.as-console-wrapper {max-height: 100% !important; top: 0}
const byUnique = (fn) => (found = new Set()) => (x) => 
  ((key = fn(x)) => found.has(key) ? false : found. add (key))()
tracks .filter (byUnique (artistId) ())
const byUniqueArtistId = byUnique (artistId)
// later
tracks .filter (byUniqueArtistId ())
-----------------------
const byUnique = (fn, found = new Set()) => (x) => 
  ((key = fn(x)) => found.has(key) ? false : found. add (key))()

const artistId = ({artist: {id}}) => id

const tracks = [{id: 1, artist: {id: 1, artist_name: "Taylor Swift"}, album: {id: 1, album_name: "Fearless (Taylor's Version)"}, track_name: "Love Story", time: "00: 03: 49", genre: "POP"}, {id: 2, artist: {id: 1, artist_name: "Taylor Swift"}, album: {id: 1, album_name: "Fearless (Taylor's Version)"}, track_name: "You Belong With Me", time: "00: 03: 40", genre: "POP"}, {id: 4, artist: {id: 2, artist_name: "Ed Sheeran"}, album: {id: 2, album_name: "Divide"}, track_name: "Perfect", time: "00: 04: 23", genre: "POP"}]

console .log (
  tracks .filter (byUnique (artistId))
)
.as-console-wrapper {max-height: 100% !important; top: 0}
const byUnique = (fn) => (found = new Set()) => (x) => 
  ((key = fn(x)) => found.has(key) ? false : found. add (key))()
tracks .filter (byUnique (artistId) ())
const byUniqueArtistId = byUnique (artistId)
// later
tracks .filter (byUniqueArtistId ())
-----------------------
const byUnique = (fn, found = new Set()) => (x) => 
  ((key = fn(x)) => found.has(key) ? false : found. add (key))()

const artistId = ({artist: {id}}) => id

const tracks = [{id: 1, artist: {id: 1, artist_name: "Taylor Swift"}, album: {id: 1, album_name: "Fearless (Taylor's Version)"}, track_name: "Love Story", time: "00: 03: 49", genre: "POP"}, {id: 2, artist: {id: 1, artist_name: "Taylor Swift"}, album: {id: 1, album_name: "Fearless (Taylor's Version)"}, track_name: "You Belong With Me", time: "00: 03: 40", genre: "POP"}, {id: 4, artist: {id: 2, artist_name: "Ed Sheeran"}, album: {id: 2, album_name: "Divide"}, track_name: "Perfect", time: "00: 04: 23", genre: "POP"}]

console .log (
  tracks .filter (byUnique (artistId))
)
.as-console-wrapper {max-height: 100% !important; top: 0}
const byUnique = (fn) => (found = new Set()) => (x) => 
  ((key = fn(x)) => found.has(key) ? false : found. add (key))()
tracks .filter (byUnique (artistId) ())
const byUniqueArtistId = byUnique (artistId)
// later
tracks .filter (byUniqueArtistId ())
-----------------------
const byUnique = (fn, found = new Set()) => (x) => 
  ((key = fn(x)) => found.has(key) ? false : found. add (key))()

const artistId = ({artist: {id}}) => id

const tracks = [{id: 1, artist: {id: 1, artist_name: "Taylor Swift"}, album: {id: 1, album_name: "Fearless (Taylor's Version)"}, track_name: "Love Story", time: "00: 03: 49", genre: "POP"}, {id: 2, artist: {id: 1, artist_name: "Taylor Swift"}, album: {id: 1, album_name: "Fearless (Taylor's Version)"}, track_name: "You Belong With Me", time: "00: 03: 40", genre: "POP"}, {id: 4, artist: {id: 2, artist_name: "Ed Sheeran"}, album: {id: 2, album_name: "Divide"}, track_name: "Perfect", time: "00: 04: 23", genre: "POP"}]

console .log (
  tracks .filter (byUnique (artistId))
)
.as-console-wrapper {max-height: 100% !important; top: 0}
const byUnique = (fn) => (found = new Set()) => (x) => 
  ((key = fn(x)) => found.has(key) ? false : found. add (key))()
tracks .filter (byUnique (artistId) ())
const byUniqueArtistId = byUnique (artistId)
// later
tracks .filter (byUniqueArtistId ())
-----------------------
// const objectScan = require('object-scan');

const myData = {
  tracks: {
    artist_0: { id: 1, artist_name: 'Taylor Swift' },
    artist_1: { id: 1, artist_name: 'Taylor Swift' },
    artist_2: { id: 2, artist_name: 'Ed Sheeran' }
  }
};

const deleteNonUnique = (data) => objectScan(['tracks.*.id'], {
  filterFn: ({ value, context, gparent, gproperty }) => {
    if (context.has(value)) {
      delete gparent[gproperty];
    }
    context.add(value);
  },
  reverse: false
})(data, new Set());

console.log(deleteNonUnique(myData));
// => Set { 1, 2 }

console.log(myData);
/* => {
  tracks: {
    artist_0: { id: 1, artist_name: 'Taylor Swift' },
    artist_2: { id: 2, artist_name: 'Ed Sheeran' }
  }
} */
.as-console-wrapper {max-height: 100% !important; top: 0}
<script src="https://bundle.run/object-scan@16.0.2"></script>
-----------------------
// const objectScan = require('object-scan');

const myData = {
  tracks: {
    artist_0: { id: 1, artist_name: 'Taylor Swift' },
    artist_1: { id: 1, artist_name: 'Taylor Swift' },
    artist_2: { id: 2, artist_name: 'Ed Sheeran' }
  }
};

const deleteNonUnique = (data) => objectScan(['tracks.*.id'], {
  filterFn: ({ value, context, gparent, gproperty }) => {
    if (context.has(value)) {
      delete gparent[gproperty];
    }
    context.add(value);
  },
  reverse: false
})(data, new Set());

console.log(deleteNonUnique(myData));
// => Set { 1, 2 }

console.log(myData);
/* => {
  tracks: {
    artist_0: { id: 1, artist_name: 'Taylor Swift' },
    artist_2: { id: 2, artist_name: 'Ed Sheeran' }
  }
} */
.as-console-wrapper {max-height: 100% !important; top: 0}
<script src="https://bundle.run/object-scan@16.0.2"></script>
-----------------------
// const objectScan = require('object-scan');

const myData = {
  tracks: {
    artist_0: { id: 1, artist_name: 'Taylor Swift' },
    artist_1: { id: 1, artist_name: 'Taylor Swift' },
    artist_2: { id: 2, artist_name: 'Ed Sheeran' }
  }
};

const deleteNonUnique = (data) => objectScan(['tracks.*.id'], {
  filterFn: ({ value, context, gparent, gproperty }) => {
    if (context.has(value)) {
      delete gparent[gproperty];
    }
    context.add(value);
  },
  reverse: false
})(data, new Set());

console.log(deleteNonUnique(myData));
// => Set { 1, 2 }

console.log(myData);
/* => {
  tracks: {
    artist_0: { id: 1, artist_name: 'Taylor Swift' },
    artist_2: { id: 2, artist_name: 'Ed Sheeran' }
  }
} */
.as-console-wrapper {max-height: 100% !important; top: 0}
<script src="https://bundle.run/object-scan@16.0.2"></script>
-----------------------
const obj = {
    artist_0: {
        id: 1,
        artist_name: 'Taylor Swift',
    },
    artist_1: {
        id: 1,
        artist_name: 'Taylor Swift',
    },

    artist_2: {
        id: 2,
        artist_name: 'Ed Sheeran',
    },
};

const unique = {};
const unique_id = [];

for (const val in obj) {
    if (typeof unique[val] == 'undefined' && unique_id.includes(obj[val].id) == false) {
        unique[val] = obj[val];
        unique_id.push(unique[val].id);
    }
}

console.log(unique);

Approximating cos using the Taylor series

copy iconCopydownload iconDownload
print(cos(1000))
print("{:f}".format(cos(1000)))
print(f"{cos(1000):f}")
print("{:.3f}".format(cos(1000)))
print(f"{cos(1000):.3f}")
-----------------------
print(cos(1000))
print("{:f}".format(cos(1000)))
print(f"{cos(1000):f}")
print("{:.3f}".format(cos(1000)))
print(f"{cos(1000):.3f}")
-----------------------
print(cos(1000))
print("{:f}".format(cos(1000)))
print(f"{cos(1000):f}")
print("{:.3f}".format(cos(1000)))
print(f"{cos(1000):.3f}")
-----------------------
print(cos(1000))
print("{:f}".format(cos(1000)))
print(f"{cos(1000):f}")
print("{:.3f}".format(cos(1000)))
print(f"{cos(1000):.3f}")
-----------------------
x %= 2.0 * math.pi
import math

def cos(x, i=30):
    x %= 2 * math.pi
    c = 2
    n = 0
    f = 2
    for i in range(i):
        if i % 2 == 0:
            n += x**c / f
        else:
            n -= x**c / f
        c += 2
        f *= c * (c - 1)
    return 1 - n
>>> print(cos(5), math.cos(5))
0.28366218546322663 0.28366218546322625

>>> print(cos(1000), math.cos(1000))
0.5623790762906707 0.5623790762907029

>>> print(cos(1000, i=86))
...
OverflowError: int too large to convert to float
import math

def cos(x, i=30):
    x %= 2 * math.pi
    n = 0
    dn = x**2 / 2
    for c in range(2, 2 * i + 2, 2):
        n += dn
        dn *= -x**2 / ((c + 1) * (c + 2))
    return 1 - n
>>> print(cos(5), math.cos(5))
0.28366218546322675 0.28366218546322625
>>> print(cos(1000), math.cos(1000))
0.5623790762906709 0.5623790762907029
>>> print(cos(1000, i=86), math.cos(1000))
0.5623790762906709 0.5623790762907029
>>> print(cos(1000, i=1000), math.cos(1000))
0.5623790762906709 0.5623790762907029
import math

def cos(x, conv=2**-53):
    x %= 2 * math.pi
    c = 2
    n = 1.0
    dn = -x**2 / 2.0
    while abs(n / dn) > conv:
        n += dn
        c += 2
        dn *= -x**2 / (c * (c - 1))
    return n
>>> print(cos2(5), math.cos(5))
0.28366218546322675 0.28366218546322625
>>> print(cos(1000), math.cos(1000))
0.5623790762906709 0.5623790762907029
>>> print(cos(1000, 1e-6), math.cos(1000))
0.5623792855306163 0.5623790762907029
>>> print(cos2(1000, 1e-100), math.cos(1000))
0.5623790762906709 0.5623790762907029
-----------------------
x %= 2.0 * math.pi
import math

def cos(x, i=30):
    x %= 2 * math.pi
    c = 2
    n = 0
    f = 2
    for i in range(i):
        if i % 2 == 0:
            n += x**c / f
        else:
            n -= x**c / f
        c += 2
        f *= c * (c - 1)
    return 1 - n
>>> print(cos(5), math.cos(5))
0.28366218546322663 0.28366218546322625

>>> print(cos(1000), math.cos(1000))
0.5623790762906707 0.5623790762907029

>>> print(cos(1000, i=86))
...
OverflowError: int too large to convert to float
import math

def cos(x, i=30):
    x %= 2 * math.pi
    n = 0
    dn = x**2 / 2
    for c in range(2, 2 * i + 2, 2):
        n += dn
        dn *= -x**2 / ((c + 1) * (c + 2))
    return 1 - n
>>> print(cos(5), math.cos(5))
0.28366218546322675 0.28366218546322625
>>> print(cos(1000), math.cos(1000))
0.5623790762906709 0.5623790762907029
>>> print(cos(1000, i=86), math.cos(1000))
0.5623790762906709 0.5623790762907029
>>> print(cos(1000, i=1000), math.cos(1000))
0.5623790762906709 0.5623790762907029
import math

def cos(x, conv=2**-53):
    x %= 2 * math.pi
    c = 2
    n = 1.0
    dn = -x**2 / 2.0
    while abs(n / dn) > conv:
        n += dn
        c += 2
        dn *= -x**2 / (c * (c - 1))
    return n
>>> print(cos2(5), math.cos(5))
0.28366218546322675 0.28366218546322625
>>> print(cos(1000), math.cos(1000))
0.5623790762906709 0.5623790762907029
>>> print(cos(1000, 1e-6), math.cos(1000))
0.5623792855306163 0.5623790762907029
>>> print(cos2(1000, 1e-100), math.cos(1000))
0.5623790762906709 0.5623790762907029
-----------------------
x %= 2.0 * math.pi
import math

def cos(x, i=30):
    x %= 2 * math.pi
    c = 2
    n = 0
    f = 2
    for i in range(i):
        if i % 2 == 0:
            n += x**c / f
        else:
            n -= x**c / f
        c += 2
        f *= c * (c - 1)
    return 1 - n
>>> print(cos(5), math.cos(5))
0.28366218546322663 0.28366218546322625

>>> print(cos(1000), math.cos(1000))
0.5623790762906707 0.5623790762907029

>>> print(cos(1000, i=86))
...
OverflowError: int too large to convert to float
import math

def cos(x, i=30):
    x %= 2 * math.pi
    n = 0
    dn = x**2 / 2
    for c in range(2, 2 * i + 2, 2):
        n += dn
        dn *= -x**2 / ((c + 1) * (c + 2))
    return 1 - n
>>> print(cos(5), math.cos(5))
0.28366218546322675 0.28366218546322625
>>> print(cos(1000), math.cos(1000))
0.5623790762906709 0.5623790762907029
>>> print(cos(1000, i=86), math.cos(1000))
0.5623790762906709 0.5623790762907029
>>> print(cos(1000, i=1000), math.cos(1000))
0.5623790762906709 0.5623790762907029
import math

def cos(x, conv=2**-53):
    x %= 2 * math.pi
    c = 2
    n = 1.0
    dn = -x**2 / 2.0
    while abs(n / dn) > conv:
        n += dn
        c += 2
        dn *= -x**2 / (c * (c - 1))
    return n
>>> print(cos2(5), math.cos(5))
0.28366218546322675 0.28366218546322625
>>> print(cos(1000), math.cos(1000))
0.5623790762906709 0.5623790762907029
>>> print(cos(1000, 1e-6), math.cos(1000))
0.5623792855306163 0.5623790762907029
>>> print(cos2(1000, 1e-100), math.cos(1000))
0.5623790762906709 0.5623790762907029
-----------------------
x %= 2.0 * math.pi
import math

def cos(x, i=30):
    x %= 2 * math.pi
    c = 2
    n = 0
    f = 2
    for i in range(i):
        if i % 2 == 0:
            n += x**c / f
        else:
            n -= x**c / f
        c += 2
        f *= c * (c - 1)
    return 1 - n
>>> print(cos(5), math.cos(5))
0.28366218546322663 0.28366218546322625

>>> print(cos(1000), math.cos(1000))
0.5623790762906707 0.5623790762907029

>>> print(cos(1000, i=86))
...
OverflowError: int too large to convert to float
import math

def cos(x, i=30):
    x %= 2 * math.pi
    n = 0
    dn = x**2 / 2
    for c in range(2, 2 * i + 2, 2):
        n += dn
        dn *= -x**2 / ((c + 1) * (c + 2))
    return 1 - n
>>> print(cos(5), math.cos(5))
0.28366218546322675 0.28366218546322625
>>> print(cos(1000), math.cos(1000))
0.5623790762906709 0.5623790762907029
>>> print(cos(1000, i=86), math.cos(1000))
0.5623790762906709 0.5623790762907029
>>> print(cos(1000, i=1000), math.cos(1000))
0.5623790762906709 0.5623790762907029
import math

def cos(x, conv=2**-53):
    x %= 2 * math.pi
    c = 2
    n = 1.0
    dn = -x**2 / 2.0
    while abs(n / dn) > conv:
        n += dn
        c += 2
        dn *= -x**2 / (c * (c - 1))
    return n
>>> print(cos2(5), math.cos(5))
0.28366218546322675 0.28366218546322625
>>> print(cos(1000), math.cos(1000))
0.5623790762906709 0.5623790762907029
>>> print(cos(1000, 1e-6), math.cos(1000))
0.5623792855306163 0.5623790762907029
>>> print(cos2(1000, 1e-100), math.cos(1000))
0.5623790762906709 0.5623790762907029
-----------------------
x %= 2.0 * math.pi
import math

def cos(x, i=30):
    x %= 2 * math.pi
    c = 2
    n = 0
    f = 2
    for i in range(i):
        if i % 2 == 0:
            n += x**c / f
        else:
            n -= x**c / f
        c += 2
        f *= c * (c - 1)
    return 1 - n
>>> print(cos(5), math.cos(5))
0.28366218546322663 0.28366218546322625

>>> print(cos(1000), math.cos(1000))
0.5623790762906707 0.5623790762907029

>>> print(cos(1000, i=86))
...
OverflowError: int too large to convert to float
import math

def cos(x, i=30):
    x %= 2 * math.pi
    n = 0
    dn = x**2 / 2
    for c in range(2, 2 * i + 2, 2):
        n += dn
        dn *= -x**2 / ((c + 1) * (c + 2))
    return 1 - n
>>> print(cos(5), math.cos(5))
0.28366218546322675 0.28366218546322625
>>> print(cos(1000), math.cos(1000))
0.5623790762906709 0.5623790762907029
>>> print(cos(1000, i=86), math.cos(1000))
0.5623790762906709 0.5623790762907029
>>> print(cos(1000, i=1000), math.cos(1000))
0.5623790762906709 0.5623790762907029
import math

def cos(x, conv=2**-53):
    x %= 2 * math.pi
    c = 2
    n = 1.0
    dn = -x**2 / 2.0
    while abs(n / dn) > conv:
        n += dn
        c += 2
        dn *= -x**2 / (c * (c - 1))
    return n
>>> print(cos2(5), math.cos(5))
0.28366218546322675 0.28366218546322625
>>> print(cos(1000), math.cos(1000))
0.5623790762906709 0.5623790762907029
>>> print(cos(1000, 1e-6), math.cos(1000))
0.5623792855306163 0.5623790762907029
>>> print(cos2(1000, 1e-100), math.cos(1000))
0.5623790762906709 0.5623790762907029
-----------------------
x %= 2.0 * math.pi
import math

def cos(x, i=30):
    x %= 2 * math.pi
    c = 2
    n = 0
    f = 2
    for i in range(i):
        if i % 2 == 0:
            n += x**c / f
        else:
            n -= x**c / f
        c += 2
        f *= c * (c - 1)
    return 1 - n
>>> print(cos(5), math.cos(5))
0.28366218546322663 0.28366218546322625

>>> print(cos(1000), math.cos(1000))
0.5623790762906707 0.5623790762907029

>>> print(cos(1000, i=86))
...
OverflowError: int too large to convert to float
import math

def cos(x, i=30):
    x %= 2 * math.pi
    n = 0
    dn = x**2 / 2
    for c in range(2, 2 * i + 2, 2):
        n += dn
        dn *= -x**2 / ((c + 1) * (c + 2))
    return 1 - n
>>> print(cos(5), math.cos(5))
0.28366218546322675 0.28366218546322625
>>> print(cos(1000), math.cos(1000))
0.5623790762906709 0.5623790762907029
>>> print(cos(1000, i=86), math.cos(1000))
0.5623790762906709 0.5623790762907029
>>> print(cos(1000, i=1000), math.cos(1000))
0.5623790762906709 0.5623790762907029
import math

def cos(x, conv=2**-53):
    x %= 2 * math.pi
    c = 2
    n = 1.0
    dn = -x**2 / 2.0
    while abs(n / dn) > conv:
        n += dn
        c += 2
        dn *= -x**2 / (c * (c - 1))
    return n
>>> print(cos2(5), math.cos(5))
0.28366218546322675 0.28366218546322625
>>> print(cos(1000), math.cos(1000))
0.5623790762906709 0.5623790762907029
>>> print(cos(1000, 1e-6), math.cos(1000))
0.5623792855306163 0.5623790762907029
>>> print(cos2(1000, 1e-100), math.cos(1000))
0.5623790762906709 0.5623790762907029
-----------------------
x %= 2.0 * math.pi
import math

def cos(x, i=30):
    x %= 2 * math.pi
    c = 2
    n = 0
    f = 2
    for i in range(i):
        if i % 2 == 0:
            n += x**c / f
        else:
            n -= x**c / f
        c += 2
        f *= c * (c - 1)
    return 1 - n
>>> print(cos(5), math.cos(5))
0.28366218546322663 0.28366218546322625

>>> print(cos(1000), math.cos(1000))
0.5623790762906707 0.5623790762907029

>>> print(cos(1000, i=86))
...
OverflowError: int too large to convert to float
import math

def cos(x, i=30):
    x %= 2 * math.pi
    n = 0
    dn = x**2 / 2
    for c in range(2, 2 * i + 2, 2):
        n += dn
        dn *= -x**2 / ((c + 1) * (c + 2))
    return 1 - n
>>> print(cos(5), math.cos(5))
0.28366218546322675 0.28366218546322625
>>> print(cos(1000), math.cos(1000))
0.5623790762906709 0.5623790762907029
>>> print(cos(1000, i=86), math.cos(1000))
0.5623790762906709 0.5623790762907029
>>> print(cos(1000, i=1000), math.cos(1000))
0.5623790762906709 0.5623790762907029
import math

def cos(x, conv=2**-53):
    x %= 2 * math.pi
    c = 2
    n = 1.0
    dn = -x**2 / 2.0
    while abs(n / dn) > conv:
        n += dn
        c += 2
        dn *= -x**2 / (c * (c - 1))
    return n
>>> print(cos2(5), math.cos(5))
0.28366218546322675 0.28366218546322625
>>> print(cos(1000), math.cos(1000))
0.5623790762906709 0.5623790762907029
>>> print(cos(1000, 1e-6), math.cos(1000))
0.5623792855306163 0.5623790762907029
>>> print(cos2(1000, 1e-100), math.cos(1000))
0.5623790762906709 0.5623790762907029

Approximating sin using the Taylor series

copy iconCopydownload iconDownload
def sin3(x, i=30):
    x %= 2 * math.pi
    n = 0
    dn = x
    for c in range(1, 2 * i + 4, 2):
        n += dn
        dn *= -x**2 / ((c + 1) * (c + 2))
    return n

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QUESTION

get values from a taylor.diagram in R

Asked 2021-Jun-10 at 13:27

I am using taylor.diagram in R to evaluate the model performance. The below codes can make a sample taylor.diagram plot:

library(plotrix)

# create random data as the reference data
ref <-rnorm(30,sd=2)

# create some data as the model results
model <- ref+rnorm(30)

# display the diagram to evaluate the model peformance
plot <-taylor.diagram(ref,model)

Now my question is: how can I extract data results from this diagram? I need standard deviations (ref and model), correlation coefficient (r value), and centered root-mean-square (RMS).

Thanks

ANSWER

Answered 2021-Jun-10 at 13:27

The Taylor diagram is a visualization tool and although it calculates this metrics you cannot access them. You can calculate them using R.

Metrics::rmse(ref,model)
stats::cor(ref,model, method= c('pearson))
sd(ref)

Source https://stackoverflow.com/questions/67921985

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

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