stacker | Utilities for competitive Machine Learning | Machine Learning library
kandi X-RAY | stacker Summary
kandi X-RAY | stacker Summary
Stacker is a library for automating repetitive tasks in a Machine Learning process. It is specially thought for competitive Machine Learning.
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Top functions reviewed by kandi - BETA
- Builds the tensors from the given models
- Returns the prediction for the given model
- Fix the given parameters
- Remove a parameter from the parameter space
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QUESTION
Our code is structured as:
...ANSWER
Answered 2021-Mar-24 at 21:26- Open Solution Explorer
- Select solution node
- Invoke popup menu and invoke
Add->Attach Folder
QUESTION
Hello fellow stackers! I'm new to python viz and would need some helps. Thanks!
I have data that looks similar to following:
Rank Class1 Class2 Class 3 1 54 94 24 2 46 38 23 3 72 56 47 4 26 47 34And want to display the histogram that looks as follow:
- X is the
Rankcolumn - have to display all numbers, values is incremental and could go up to 100. - Y is the values of
ClassXcolumns (Class1,Class2, etc). - The
ClassXcolumns will need to displayed next to each other (example below is blue bar might beClass1, green may beClass2, and another bar forClass3).
(Sample histogram only, doens't represent the sample data above)
How do I achieve this with Seaborn or Matplotlib?
What I have tried (unsucessfully..) ...ANSWER
Answered 2021-Feb-05 at 17:59How about:
QUESTION
is there a way to have equations (inside $$) always \displaystyle without having to type \displaystyle inside each $$? I looked online but couldn't find an answer, only for TeX documents, but not for R Markdown. Thanks !
Nonexample: (test.Rmd)
...ANSWER
Answered 2021-Jan-26 at 10:02This page https://tex.stackexchange.com/questions/32824/show-inline-math-as-if-it-were-display-math-and-vice-versa suggests putting \everymath{\displaystyle} in the preamble to achieve what you want. If I just put that into the body of the R Markdown file, it seems to work for me. For example,
QUESTION
eg python code
...ANSWER
Answered 2020-Dec-18 at 10:31You can do this like you said without syntax highlighting using ,
QUESTION
I am new to stacker flow and this is my first post, so I hope I can explain myself well and you can help me! Thanks in advance for your help!! I am using Scrapy to web scrap a popular real statement website from my native country. I am doing well with all the characteristics I want, such as Price, Surface, Bedrooms, among others. But I haven't been able to get the latitude/longitude of a property. In the website, for example, https://www.portalinmobiliario.com/MLC-564988630-estilo-mariposa-_JM#position=2&type=item&tracking_id=ed337e69-9999-4ede-b393-ef378e1a5675, you can find a google map location as the image shows, and inside of this HTML element, it is possible to get the lat/long (highlighted in blue) but when I try to reach this element in my code, the spider doesn't recognize it.
Using this css selector crs_location = response.css('div.map-container img:nth-child(1)').getall() I am able to get the first img inside the div, getting the following output https://http2.mlstatic.com/resources/frontend/web-vip/ui-dist/images/pin-real-estate-d1ebb73e65.svg, but when I change the nth-child to: crs_location = response.css('div.map-container img:nth-child(2)').getall() to get the second child (what I want), the crs_location variable outcome empty.
I appreciate it if you can help to figure out how to get the lat/long of this. Thanks!
Complete Code: import scrapy from scrapy import Selector import requests import pandas as pd import numpy as np
...ANSWER
Answered 2020-Dec-12 at 18:53Pretty trivial with requests and regex since we know it's the only lat/lon on the page, and we know the url format. We can capture the lat/lon portion of the url using regex and split it apart.
QUESTION
Hello fellow Stackers! This is my first question so i am curious if you can help me! :)
First: I checked similar questions and unfortunately none of the solutions worked for me. Tried it for nearly 3 days now :/ Since I am working with sensitive data I cannot provide the original table for reprex, unfortunately. However I will create a small substitutional example-table for testing.
To get to the problem:I want to predict a norm value using the package "CNorm". It requires raw data, classification data, a model and min/max values and some other things that are less important. The problem is: Whatever I do, whatever Data-type and working directory I use, it gives me the error "$ operator is invalid for atomic vectors" to change that I transformed the original .sav-file to a Dataframe. Well- nothing happened. I tested the type of the data and it said dataframe, not atomic vector. Also i tried using "[1]" for location or ["Correct"] for names but still the same error showed up. Same for using 2 single Dataframes, using lists. I have tried to use $ to check, if i get a different error but also the same. I even used another workspace to check if the old workspace was bugged.
So maybe I just did really stupid mistakes but I really tried and it did not work out so I am asking you, what the solution might be. Here is some data to test! :)
...ANSWER
Answered 2020-Dec-08 at 10:28The source of that error isn't your data, it's the third argument to predictNorm: model = T. According to the predictNorm documentation, this is supposed to be a "regression model or a cnorm object". Instead you are passing in a logical value (T = TRUE) which is an atomic vector and causes this error when predictNorm tries to access the components of the model with $.
I don't know enough about your problem to say what kind of model you need to use to get the answer you want, but for example passing it an object constructed by cnorm() returns without an error using your data and parameters (there are some warnings because of the small size of your test dataset):
QUESTION
Hi Stackers I still new in coding and need some help. Now I have two NFC tags and both tags is storing with different Geo coordinates(longitude, latitude). Currently, I able to read the payload from the NFC tags. What I want is to store the payloads from both of the NFC tags into an arraylist. When I read the first tag it does stored the payload into arraylist, but when read second tag the payload will overwritten the previous payload.
Android Manifest:
...ANSWER
Answered 2020-Oct-15 at 18:50The problem this time is that you are not creating a new instance of a Fragment like your were in your previous similar question, you are creating a new arraylist every time a card is read and thus de-referencing the first list object for it to be deleted by the garbage collection.
This is a classic variable initialisation issue.
readIntent is called every time a card is read.
So remove the first line of `readIntent where you create a new list.
e.g.
QUESTION
Hello stackers!
Ive made a library databse, i was wondering.. i am making one-to-one relation between Copies and Loans. and one-to-many relation from Users to Loans.
Since a copy of a book only should be allowed to be assigned one loan at a time, and a loan should only be able to containt one copy of a book. if they rent other books, its multiple loans.
and a user should be able to make multiple loans, but a loan can only be assigned one specific user.
is my current relations between these three tables correct? if not, i would love to know how to fix it, and the reason to my failed logic on the issue.
thank you in advance!
...ANSWER
Answered 2020-Oct-09 at 20:38The model looks good to me. You may need to apply some in the logic to enforce a user to have only one loan with same copy of a book.
A user will be able loan a copy over and over again ? then the relationship to loan to copy 1:M
QUESTION
Ahoy!
Any help on this would be really appreciated stackers! Ok so, I have a drop down menu with 3 lists where I need the selections from each list to alter the options on the next. I have been successful and making the three lists list auto populate from the first selection in (dropdown 1) but not when I select the 2nd option in the first list to auto populate the third list. What syntax can I use to make the third list options change from a selection in the first list? I havent included all the options for the Flange/Groove list because there is just too much. Apologies for my noobness
Heres my HTML:
...ANSWER
Answered 2020-Sep-18 at 09:01Your logic was a bit incorrect previously - The tricky part is that you are checking for flang and 20,25 but the else if is at placed at the end which was never hitting that point.
The threaded option with '10', '15', '20', '25' was placed at first if so that was always becoming true regardless since the condition was matching
Also, you need to use an onchange function NOT an onclick function in your HTML as well. onchange function is used for changing selection or checkboxes.
Live Working Demo: (All working as required)
QUESTION
I'm trying to call a function testPieceCollision, but I'm getting a list indexing error:
Here is the definition of testPieceCollision:
ANSWER
Answered 2020-Aug-10 at 23:39One of your indexes is a list, that's what the error says. The best way to find out is printing every variable you are using as index, right before the line that throws the error, and put "exit()" on the next line to terminate the code before the line that is throwing the error message.
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You can use stacker like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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