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std::vector performance regression when enabling C++11
I have found an interesting performance regression in a small C++ snippet, when I enable C++11:
1 Answer
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Fastest sort of fixed length 6 int array
...rrRex Kerr
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Get statistics for each group (such as count, mean, etc) using pandas GroupBy?
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What if I have a separate called Counts and instead of count the rows of the grouped type, I need to add along the column Counts.
– Abhishek Bhatia
Oct 2 '17 at 21:28
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Convert character to ASCII code in JavaScript
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Fun fact: you don’t really need the 0 (first argument value) — just "\n".charCodeAt() will do.
– Mathias Bynens
Oct 17 '11 at 9:40
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How does python numpy.where() work?
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How do they achieve internally that you are able to pass something like x > 5 into a method?
The short answer is that they don't.
Any sort of logical operation on a numpy array returns a boolean array. (i.e. __gt__, __lt__, etc all return boolea...
C++ Exceptions questions on rethrow of original exception
...he catch cause the rethrown exception to see the effect of append() being called?
4 Answers
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Python's many ways of string formatting — are the older ones (going to be) deprecated?
...ormatting syntax is more flexible and handles tuples and dictionaries naturally, it is recommended for new code. However, there are no current plans to deprecate printf-style formatting.
(Emphasis mine.)
This phrase was removed later, in commit Close #4966: revamp the sequence docs in order to be...
Removing all non-numeric characters from string in Python
How do we remove all non-numeric characters from a string in Python?
7 Answers
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Multiple linear regression in Python
...as some other model evaluation criteria. If you want the stuff like in Akavall's answer, statsmodels has some more R-like diagnostics.
– djs
Mar 17 '16 at 18:56
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C++ multiline string literal
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const char *text2 =
"Here, on the other hand, I've gone crazy \
and really let the literal span several lines, \
without bothering with quoting each line's \
content. This works, but you can't indent.";
Again, note those backslashes at the end of each line, they must be immediately before the...