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Accurate way to measure execution times of php scripts
...ere is a function that times execution of any piece of PHP code, much like Python's timeit module does: https://gist.github.com/flaviovs/35aab0e85852e548a60a
How to use it:
include('timeit.php');
const SOME_CODE = '
strlen("foo bar");
';
$t = timeit(SOME_CODE);
print "$t[0] loops; $t[2] pe...
How to create a numpy array of all True or all False?
In Python, how do I create a numpy array of arbitrary shape filled with all True or all False?
7 Answers
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Checking images for similarity with OpenCV
...portance to histogram method though. Here's how I've implemented in simple python script.
import cv2
class CompareImage(object):
def __init__(self, image_1_path, image_2_path):
self.minimum_commutative_image_diff = 1
self.image_1_path = image_1_path
self.image_2_path =...
How to detect a Christmas Tree? [closed]
...egmentation step is performed--I used the DBSCAN clustering algorithm from Python's scikit-learn; it's optimized for finding somewhat amorphous shapes that may not necessarily have a single clear centroid.
At the top level, my approach is fairly simple and can be broken down into about 3 steps. Fi...
jquery save json data object in cookie
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On the server side, Python's standard cookie handling will reject cookies containing { or }, and silently drop any cookies that follow the rejected cookie in the cookie header.
– snakecharmerb
Nov 29 '17 at...
How to “inverse match” with regex?
...
For Python/Java,
^(.(?!(some text)))*$
http://www.lisnichenko.com/articles/javapython-inverse-regex.html
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Why does (0 < 5 < 3) return true?
...
And because JavaScript is NOT Python. :-)
– rsenna
Nov 3 '10 at 16:37
1
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How to print the full NumPy array, without truncation?
...isons. 'nan' only happens to work due to fragile implementation details of Python 2's mixed-type comparison logic; it breaks completely on Python 3.
– user2357112 supports Monica
Jun 1 '17 at 20:12
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Quickly reading very large tables as dataframes
... The "feather" package has a new binary format that plays nice with Python's pandas data frames
– rsoren
Mar 30 '16 at 9:53
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How to add an empty column to a dataframe?
... new (empty) dataframe to the existing dataframe, but that doesn't feel as pythonic to me :)
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