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numpy: most efficient frequency counts for unique values in an array
...x = np.array([1,1,1,2,2,2,5,25,1,1])
y = np.bincount(x)
ii = np.nonzero(y)[0]
And then:
zip(ii,y[ii])
# [(1, 5), (2, 3), (5, 1), (25, 1)]
or:
np.vstack((ii,y[ii])).T
# array([[ 1, 5],
[ 2, 3],
[ 5, 1],
[25, 1]])
or however you want to combine the counts and th...
Programmer Puzzle: Encoding a chess board state throughout a game
... possible (but incredibly unlikely) for one side to end up with 9 queens, 10 rooks, 10 bishops or 10 knights if all 8 pawns get promoted.
Stalemate
When in a position from which you cannot win your best tactic is to try for a stalemate. The most likely variant is where you cannot make a legal move...
How to run Conda?
... @NewNameStat: See this thread stackoverflow.com/questions/9127405/…
– petezurich
Aug 22 '17 at 19:56
3
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Add vertical whitespace using Twitter Bootstrap?
...ation in them. This is because those classes
are applied from min-width: 0 and up, and thus are not bound by a
media query. The remaining breakpoints, however, do include a
breakpoint abbreviation.
The classes are named using the format {property}{sides}-{size} for xs
and {property}{sid...
Can't connect to local MySQL server through socket homebrew
...
20 Answers
20
Active
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Round to 5 (or other number) in Python
...
answered Feb 16 '10 at 10:38
Alok SinghalAlok Singhal
78.5k1818 gold badges119119 silver badges149149 bronze badges
...
Is Tomcat running?
...cron'd checker script which sends out an email when tomcat is down:
kill -0 `cat $CATALINA_PID` > /dev/null 2>&1
if [ $? -gt 0 ]
then
echo "Check tomcat" | mailx -s "Tomcat not running" support@dom.com
fi
I guess you could also use wget to check the health of your tomcat. If you hav...
Can code that is valid in both C and C++ produce different behavior when compiled in each language?
...nce.
Another one from this article:
#include <stdio.h>
int sz = 80;
int main(void)
{
struct sz { char c; };
int val = sizeof(sz); // sizeof(int) in C,
// sizeof(struct sz) in C++
printf("%d\n", val);
return 0;
}
...
Android: why is there no maxHeight for a View?
... heightMeasureSpec) {
heightMeasureSpec = MeasureSpec.makeMeasureSpec(300, MeasureSpec.AT_MOST);
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
This might not work in all situations, but it certainly gives me the results needed for my layout. And it also addresses the comment by m...
Java String remove all non numeric characters
Trying to remove all letters and characters that are not 0-9 and a period. I'm using Character.isDigit() but it also removes decimal, how can I also keep the decimal?
...