running into a large bottleneck in my program that takes hours to perform.
I have a Dataframe that is very large. I need to take the columns of the Dataframe and create new columns within same Dataframe. the new columns need to grouped by a specific date once grouped they are ranked . after...
I got this program that I am working on and in it, I got a section that has a try statement and two error except statements.
try:
...
if ...: raise SyntaxError
except SyntaxError:
...
except ValueError:
...
The thing is that the SyntaxErrors are technically ValueErrors, but th...
Okay, this will most likely be the last post I make for Singe Linked List unless significant revision is needed. This post following from here.
Shout out to @hoffmale for showing me the ways of the force.
Here is the header file:
#ifndef SINGLELINKEDLIST_h
#define SINGLELINKEDLIST_h
template 
Hello Stackexchangers,
I started to learn c# and while i was writing the same code 100 times in a row, i was wondering if my design is not optimal or i am writing sloppy code.
private void initialiseerVariabelen()
{
int minimum = 0, maximum = 100;
trackBar1.Minimum =...
I'm going to screw around with visualizing Recamán's Sequence, but want to have a good sequence generator to generate the sequence before I start. I want to use a lazy generator for my actual application, but decided to make a strict version first since it will likely be simpler.
This is what I ...
The following C# code is written to fetch the Categories data from SQL Server Database using Asynchronous Task for HttpGet. The Dapper library is used as ORM.
I need help to identify whether the Async Task implementation is correct or any better way to implement?
CategoriesController.cs
public...
As an exercise in multithreaded programming, I am trying to implement a basic FIFO task queue. For this, I also implement simplified version of my lock_guard, from STL. Here is the code:
#include <mutex>
#include <iostream>
#include <thread>
#include <chrono>
#include <optional>
namespace cho {...
The catchment area is having a bad association with the hungry man. The popular things which are common for the involvment of the understanding of the statement is the perusal of the images and though avoiding the sensor . Please understand and will you ?
Im trying to match the pixel spacing between two folders, here matches has 994 keys and it shows that i may take more than a day to compute this. Is there any way i can speed up this operation.
the load series function looks like this
import SimpleITK as sitk
def load_series(path):
reader ...
I have a simple event that the cleint sends to the server, the server can then respond saying if it was successful, or if it failed for some reason.
The client has to send a auth code, which is inside their config class. Below I attempt to throttle it, allowing 2 attempts, then reloading the co...
I have Activity1, where I display Room database entries in form of LiveData in a RecyclerView, and Activity2, where I have the necessary fields to add and update new entries.
I wonder what is the proper architecture to build this kind of situation, where Activity2 has 2 roles (create and update)...
I have a neural network for linear regression:
class Neural(object):
def __init__(self,x,y,hiddensize1,output_size,cost=None,alpha=0.01,reg_coef=0.1):
std=0.1
self.x=x
self.y=y
self.hiddensize1=hiddensize1
self.output_size=output_size
self.cos...
What would be the best way to replace in a long text (about a page) up to 10 variables.
I feel, that there would be something more elegant than this:
string s;
s = string.Format("Lorem ipsum dolor sit amet, consetetur {0} sadipscing elitr, " + Environment.NewLine +
...
I have two tables in my database, which contains a big list of organisations. They are called orgs_main and orgs_sub. This is the structure:
orgs_main:
id | code | name | address |
----------------------------
orgs_sub:
id | code | name | address | merged |
---------------------------------...
No. We require the code to be contained within the question, for the following reasons:
To avoid dependency on third-party hosting services. These links tend to go away after a while.
To prevent review requests of huge projects.
To make it easier to see the code and so it can interest more revi...
You don't use typing properly. Parametrizing generic types should be done using brackets notation (aka __getitem__) not parenthesis (aka instantiation).
You also don't use any feature of dataclasses in your defined classes, so you might as well drop that dependency. Or you could use it properly ...
I am sub-classing an object in python and I need to overload a bunch of the methods with very similar logic, essentially a call to super() and then some additional operations. I want to avoid explicitly writing out each of those overloaded methods in that way, so I implemented a decorator.
Is th...
The question Does this method guarantee that cells in a CSV will be correctly partitioned? is a duplicate of this one (10k+ and mods only) which asks whether a singular function properly 'escapes' bits of text from a CSV when handed to the function.
My personal opinion is that it does not meet t...
I think that an excerpt from my answer to Thomas Ward's meta question provides a good starting point for nailing down the whole "context" thing.
This is how I feel about context personally.
This may or may not be how Code Review feels as a community
The Last Piece of the puzzle
Conte...
Newbie Alert!
I have been playing around in hacker rank with Python these days, and now pulling my hair out on this question to solve the Euler's problem in the least time required.
Without that in mind, I initially wrote the below code:
t = int(input())
for a in range(t):
n = int(input())...
Reason
I decided to write a new language, partially for the challange and for the following reasons:
I wanted to implement the pipe operator: |>, the lambda operator: '::' and the hash operator: '#'.
Javascript comments were rather jagged, so I replaced /* with @@@
Accessing prototypes was a p...
Good Day,
Attached is some code I have written for my application. It is an OWIN based web server which connects an Alexa Custom Skill, my security camera feed, and Microsoft Azure Face Api.
The number one thing to remember when creating an Alexa custom skill is that the bot times-out after abo...
I am trying to learn OOP by refactoring my existing code (functions only). This example works but I am not sure whether it is pythonic and good practice.
I have a shared library which consist of several file with functions:
color_spaces.py
import cv2
def rgb_to_hsv(image):
print ('hsv')
...
Write a function sumprimes(l) that takes as input a list of integers l and retuns the sum of all the prime numbers in l in python.
Here are some examples to show how your function should work.
>>> sumprimes([3,3,1,13])
19
>>> sumprimes([2,4,6,9,11])
13
>>> sumprimes([-3,1,6])
0
I have a user interface that I designed for a simple code demo the layout is presented like I want it to be, but barely holding up (malaligned components and half-baked animations) I want it revamped and styled properly. I am still getting my feet wet with CSS but would like this to be done p...
Mad Libs program that reads in text files and lets the user add their own text anywhere the word ADJECTIVE, NOUN, ADVERB, or VERB appears in the text file.
#!/usr/bin/env python3
# madlib.pyw - Mad Libs program that reads in text files
# and lets the user add their own t...
public void addBird(String art, String location){
boolean found = false;
for (int i = 0; i <birdlList.size(); i++){
if(birdList.contains(art))
found = true;
break;
}
if (!found) {
System.out.println("The bird is...
I need a method which fetches all of the text from a URL (generally a sitemap URL), and returns an IEnumerable of all valid URLs contained in the text returned from the initial address. What I have so far is:
public IEnumerable<Uri> GetSitemapUrls(Uri sitemapUrl)
{
var sitemapText = GetSitem...
I need to simply count lines of Scala code in project, which includes some package(i.e. directory) hierarchy
import java.io.File
import scala.io.Source
object CountLoc {
def main(args: Array[String]): Unit = {
val parentDir: File = new File(System.getProperty("user.dir"))
def travers...
Is the following code a proper solution to my problem? I have a feeling it can be simplified quite a bit.
function checkboxCount() {
var form = document.forms["calculator"];
var bar5 = form.elements["bar5"];
var foo = document.querySelectorAll("input[name=foo]");
count = 0;
for (var i...
