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Why is it OK to return a 'vector' from a function?
... several times. words is a local vector. How is it possible to return it from a function?
6 Answers
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Find the most frequent number in a numpy vector
...ng numpy, collections.Counter is a good way of handling this sort of data.
from collections import Counter
a = [1,2,3,1,2,1,1,1,3,2,2,1]
b = Counter(a)
print(b.most_common(1))
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how to mysqldump remote db from local machine
...
How about being in a VPN? Or doing a dump from a machine you SSHed into that has access to the database machine? The port does not need to be public.
– Ondrej Burkert
Sep 5 '18 at 20:07
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How do I merge a specific commit from one branch into another in Git?
...git cherry-pick <commit> command allows you to take a single commit (from whatever branch) and, essentially, rebase it in your working branch.
Chapter 5 of the Pro Git book explains it better than I can, complete with diagrams and such. (The chapter on Rebasing is also good reading.)
Lastly,...
How can I determine whether a 2D Point is within a Polygon?
...ay casting. The idea of the algorithm is pretty simple: Draw a virtual ray from anywhere outside the polygon to your point and count how often it hits a side of the polygon. If the number of hits is even, it's outside of the polygon, if it's odd, it's inside.
The winding number algorithm would be...
How can I extract all values from a dictionary in Python?
... if isinstance(d, dict):
for v in d.values():
yield from get_all_values(v)
elif isinstance(d, list):
for v in d:
yield from get_all_values(v)
else:
yield d
An example:
d = {'a': 1, 'b': {'c': 2, 'd': [3, 4]}, 'e': [{'f': 5}, {'g': 6}]}
...
How do I convert seconds to hours, minutes and seconds?
...ossible to use time.strftime, which gives more control over formatting:
from time import strftime
from time import gmtime
strftime("%H:%M:%S", gmtime(666))
'00:11:06'
strftime("%H:%M:%S", gmtime(60*60*24))
'00:00:00'
gmtime is used to convert seconds to special tuple format that strftime() re...
How to determine function name from inside a function
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From the Bash Reference Manual:
FUNCNAME
An array variable containing the names of all shell functions currently in the execution call stack. The element with index 0 is the name of any currently-executing shell function. Th...
Get name of current script in Python
...e__ is the same: it will be linkfile.py. If you want to find 'realfile.py' from 'linkfile.py', try os.path.realpath('linkfile.py').
– Chris Morgan
May 13 '13 at 3:49
...
Get a pixel from HTML Canvas?
....getElementById('myCanvas').getContext('2d');
// Get the CanvasPixelArray from the given coordinates and dimensions.
var imgd = context.getImageData(x, y, width, height);
var pix = imgd.data;
// Loop over each pixel and invert the color.
for (var i = 0, n = pix.length; i < n; i += 4) {
pix[...