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Find row where values for column is maximal in a pandas DataFrame
...argmax used to exist and perform the same function (though appeared to run more slowly than idxmax).
argmax function returned the integer position within the index of the row location of the maximum element.
pandas moved to using row labels instead of integer indices. Positional integer indices us...
new DateTime() vs default(DateTime)
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One could argue that default(DateTime) is more descriptive of the programmer's intent, therefore more favorable usually.
– intrepidis
Jul 8 '15 at 9:34
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Open Source Java Profilers [closed]
...of. I find it useful to compare the results it provides with results from more fully features profilers.
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Checking for the correct number of arguments
... a directory, output usage to stderr and exit with a failure status code.
More friendly error reporting:
#!/bin/sh
if [ "$#" -ne 1 ]; then
echo "Usage: $0 DIRECTORY" >&2
exit 1
fi
if ! [ -e "$1" ]; then
echo "$1 not found" >&2
exit 1
fi
if ! [ -d "$1" ]; then
echo "$1 not a...
How to print a float with 2 decimal places in Java?
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How to get numbers after decimal point?
...proach. The answer I sought was the next answer, 5.55 % 1, which is also a more generally useful answer--one can use the modulo division approach in multiple languages, whereas the above answer is Python-specific.
– Stew
Feb 3 '15 at 20:17
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Extracting the last n characters from a string in R
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Would it be more efficient to avoid calling nchar(x) twice by assigning it to a local variable?
– Dave Jarvis
Aug 12 '17 at 3:24
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How to get an array of unique values from an array containing duplicates in JavaScript? [duplicate]
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How to implement a tree data-structure in Java? [closed]
...ture to contain the root. You can add methods to the tree class that make more sense to call on a tree rather than a single node.
– jjnguy
Aug 19 '10 at 14:03
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Function to calculate distance between two coordinates
...een). It's probably better than rolling your own (for starters, it uses a more precise value for the Earth's radius).
For the picky among us, when I say "straight-line distance", I'm referring to a "straight line on a sphere", which is actually a curved line (i.e. the great-circle distance), of co...