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Generate a heatmap in MatPlotLib using a scatter data set
I have a set of X,Y data points (about 10k) that are easy to plot as a scatter plot but that I would like to represent as a heatmap.
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String concatenation vs. string substitution in Python
In Python, the where and when of using string concatenation versus string substitution eludes me. As the string concatenation has seen large boosts in performance, is this (becoming more) a stylistic decision rather than a practical one?
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Invalid date format specification in gemspec
I am getting the following error when I try to use gems in windows, and I also referred to
this stackoverflow post and updated rubygems and rails. But nothing could solve the problem.
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PHP date() format when inserting into datetime in MySQL
What is the correct format to pass to the date() function in PHP if I want to insert the result into a MySQL datetime type column?
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What is the difference between == and equals() in Java?
I wanted to clarify if I understand this correctly:
23 Answers
23
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What is a non-capturing group in regular expressions?
How are non-capturing groups, i.e. (?:) , used in regular expressions and what are they good for?
15 Answers
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How to set my default shell on Mac?
I do not like to retype fish every time I start terminal. I want fish on by default. How can I set fish shell as my default shell on a Mac?
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How to silence output in a Bash script?
I have a program that outputs to stdout and would like to silence that output in a Bash script while piping to a file.
9 An...
How to get the selected radio button’s value?
I’m having some strange problem with my JS program. I had this working properly but for some reason it’s no longer working. I just want to find the value of the radio button (which one is selected) and return it to a variable. For some reason it keeps returning undefined .
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What's the false operator in C# good for?
There are two weird operators in C#:
5 Answers
5
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