imp | macro for summoning implicit values

by non Scala Version: v0.4.0 License: MIT

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kandi X-RAY | imp Summary

imp is a Scala library. imp has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

This is a very small library that exists to scratch one itch. It provides a zero-cost macro to summon implicit values. One use of this is the imp method, which is similar to implicitly (but without any of the latter's indirection). Previously, there were cases where context-bound syntax [1] or other indirection was not optimal due to the cost associated with implicitly. There is a convention when creating type classes in Scala to provide an apply method on the companion object, to access an implicit type class instance. The summon macro can be used here to create a more efficient form of this method. ([1] By context-bound, I mean declaring a type parameter as [A: Magma], which corresponds to [A] with an (implicit ev: Magma[A]) parameter also.).

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Quality

Security

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Support

imp has a low active ecosystem.

It has 95 star(s) with 4 fork(s). There are 13 watchers for this library.

It had no major release in the last 12 months.

There are 4 open issues and 3 have been closed. On average issues are closed in 16 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of imp is v0.4.0

Quality

imp has 0 bugs and 0 code smells.

Security

imp has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

imp code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

imp is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

imp releases are available to install and integrate.

Installation instructions are not available. Examples and code snippets are available.

It has 114 lines of code, 15 functions and 10 files.

It has medium code complexity. Code complexity directly impacts maintainability of the code.

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imp Key Features

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imp Examples and Code Snippets

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Community Discussions

Trending Discussions on imp

Creating loop over columns to calculate regression and then compare best combination of variables

Jupyter with Julia results in unexpected type error: no method matching

conditional validation of Angular reactive forms

Cython program (print Hello world) much slower than pure Python

Clustering in R using K-mean

Showing a specific JSON response for my GET endpoint

ModuleNotFoundError: No module named 'django.config' using celery and rabbitmq

How do I extract a specific column from a dataset using pandas that's imported from a HTML file?

arabic characters to ABCD characters

Lower Objective leads to better solution MILP

QUESTION

Creating loop over columns to calculate regression and then compare best combination of variables

Asked 2022-Mar-24 at 19:14

I am trying to run a loop which takes different columns of a dataset as the dependent variable and remaining variables as the independent variables and run the lm command. Here's my code

...

ANSWER

Answered 2022-Mar-24 at 17:53

We could change the line of fit with

Source https://stackoverflow.com/questions/71605227

QUESTION

Jupyter with Julia results in unexpected type error: no method matching

Asked 2022-Feb-19 at 14:31

I get an unexpected type error when running the following Julia code in Jupyter, where a seemingly straightforward import goes wrong:

...

ANSWER

Answered 2022-Jan-31 at 01:28

You can either do:

Source https://stackoverflow.com/questions/70919757

QUESTION

conditional validation of Angular reactive forms

Asked 2022-Feb-02 at 09:30

I am new to angular and working on reactive form.

I have a html table in which by looping through I have generated controls

I want to add validation based on following cases

When this page loads than by default Save button should be disabled( which I have achieved by used [disabled]="!myform.valid"
Save button should enable only when user enter value in any of text boxes or select check box in that particular row. Checkbox select and add value in text box should not allow to user. Either checkbox should be selected or user can enter value in any of text-boxes.

I tried this to achieve

...

ANSWER

Answered 2022-Feb-02 at 09:30

Update:

After understanding the whole question, we could resolve it by adding a new validator to each form item.

Here is the reproduction example(You can see the same on the Stackblitz):

Source https://stackoverflow.com/questions/70492882

QUESTION

Cython program (print Hello world) much slower than pure Python

Asked 2022-Jan-07 at 11:19

I am new to Cython. I've written a super simple test programm to access benefits of Cython. Yet, my pure python is alot faster. Am I doing something wrong? test.py:

...

ANSWER

Answered 2022-Jan-06 at 22:31

It takes too long because pyximport compiles the cython code on the fly (so you are measuring also compilation from cython to C and compilation C code to native library). You should measure calling already compiled code - see https://cython.readthedocs.io/en/latest/src/quickstart/build.html#building-a-cython-module-using-setuptools

Source https://stackoverflow.com/questions/70613471

QUESTION

Clustering in R using K-mean

Asked 2021-Dec-17 at 17:31

I tried to cluster my dataset using K-mean, but there is a categorical data in column 9; so when I ran k-mean it had an error like this:

...

ANSWER

Answered 2021-Dec-17 at 17:31

To solve your specific issue, you can generate dummy variables to run your desired clustering.

One way to do it is using the dummy_columns() function from the fastDummies package.

Source https://stackoverflow.com/questions/70364971

QUESTION

Showing a specific JSON response for my GET endpoint

Asked 2021-Nov-15 at 14:29

I have a many-to-many relationship between Department and Employee

I have already done a mapping for the GET endpoint which returns a list of departments that contain Employees, this is the request: http://localhost:8080/api/departments/1/employees, and this is the response I get:

...

ANSWER

Answered 2021-Nov-15 at 14:29

If the response you want to give has a different structure from your model (the first diagram you showed), you need to implement the DTO pattern.

DTO: Data Transfer Object. It just means, in words of Samuel L. Jackson "hey you! Do you want to show your shit in a different way? Create a new mother fucker object that represents the new shit, and damn transform it!"

So, create a new object called DepartmentEmployeeDTO with the structure you want to show, and use a Builder pattern to transform from one to another. And of course make getEmployeesPerDepartment return List. That method will end up as something like this:

Source https://stackoverflow.com/questions/69974071

QUESTION

ModuleNotFoundError: No module named 'django.config' using celery and rabbitmq

Asked 2021-Oct-23 at 20:59

I'm getting this error after running the following command:

...

ANSWER

Answered 2021-Oct-23 at 20:59

It sounds like you have somewhere (in your app/celery.py if using the standard layout) a line that looks like:

Source https://stackoverflow.com/questions/69634198

QUESTION

How do I extract a specific column from a dataset using pandas that's imported from a HTML file?

Asked 2021-Sep-29 at 08:56

import requests
import os
import pandas as pd
from bs4 import BeautifulSoup

#Importing html
df = pd.read_html(os.path.expanduser("~/Documents/HTMLSpider/HTMLSpider_test/spotgamma.html"))
print (df['Latest Data'])

...

ANSWER

Answered 2021-Sep-29 at 08:45

Note that

Source https://stackoverflow.com/questions/69373046

QUESTION

arabic characters to ABCD characters

Asked 2021-Sep-07 at 15:52

I am working with below code in php to show the arabic letters in roman ABCD characters as defined below in my code.

But it is not displaying properly. It is losing the character sorting also and not displaying some of the characters according to my string.

it is showing as _space_aabtkhlmn and it should show as khatm_space_alanbyaa.

I can not figure it out where i am wrong.

Please help why it is showing wrong?

...

ANSWER

Answered 2021-Sep-07 at 15:52

Your logic splits the string into characters separated by commas. It then checks if space is anywhere in the string, and if so print _space_, and then checks if ء is anywhere in the string, and if so, print "a", and then checks if ا is anywhere in the string, and if so, print "aa." This is going to print the results in the order you test in, not the order of the string.

What I believe you meant to do is this:

Source https://stackoverflow.com/questions/69090382

QUESTION

Lower Objective leads to better solution MILP

Asked 2021-Aug-31 at 15:57

In this optimization problem, I am trying to maximize the output value representing the "income" of a city based on some arbitrary formula. The formula relies on discrete values, so-called improvements, most of which are variables that the solver is free to play with.

My question relates to the fact that if I specifically divide the objective function so that their magnitude is smaller, it yields better results. I can confirm that because if I then take the values for the improvements (vars) and run them through the formula, I get a better result.

For the code, most of it is jargon and I think is not relevant? I will try to be succinct.

...

ANSWER

Answered 2021-Aug-31 at 15:57

Optimization algorithms can perform better when functions and variables are scaled (see section 2.4 of Chapter 2 of the Design Optimization book). This generally explains why the solver can find a solution faster but does not change the solution for convex optimization problems (one local minimum).

If there are multiple local minima (non-convex problem) then scaling or variable initialization can influence the solution. One observation is that a lower objective is found on the first MINLP iteration (NLP solution that doesn't use integer variables). There is either another objective in the problem that isn't scaled or else the problem is non-convex.

Unscaled

Source https://stackoverflow.com/questions/68995929

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

Vulnerabilities

No vulnerabilities reported

Install imp

You can download it from GitHub.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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