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Combine two columns of text in pandas dataframe
I have a 20 x 4000 dataframe in Python using pandas. Two of these columns are named Year and quarter . I'd like to create a variable called period that makes Year = 2000 and quarter= q2 into 2000q2 .
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Math.random() versus Random.nextInt(int)
What is the difference between Math.random() * n and Random.nextInt(n) where n is an integer?
4 Answers
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How to sort an array by a date property
Say I have an array of a few objects:
17 Answers
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How to escape braces (curly brackets) in a format string in .NET
How can brackets be escaped in using string.Format .
10 Answers
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Checking for NULL pointer in C/C++ [closed]
In a recent code review, a contributor is trying to enforce that all NULL checks on pointers be performed in the following manner:
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Can I change the viewport meta tag in mobile safari on the fly?
I have an AJAX app built for mobile Safari browser that needs to display different types of content.
3 Answers
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How to easily resize/optimize an image size with iOS?
My application is downloading a set of image files from the network, and saving them to the local iPhone disk. Some of those images are pretty big in size (widths larger than 500 pixels, for instance). Since the iPhone doesn't even have a big enough display to show the image in its original size, I'...
python setup.py uninstall
I have installed a python package with python setup.py install .
16 Answers
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Advances social tools app with cool UI - Koded Apps - Kodular Community
:root {
--animation-state: paused;
}
/* user picked a theme where the "regular" scheme is dark */
/* user picked a theme a light scheme and also enabled a dark scheme */
/* deal with light scheme first */
@media (prefers-color-scheme: ...
Get decimal portion of a number with JavaScript
I have float numbers like 3.2 and 1.6 .
22 Answers
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