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Mathematics Function scripts

Weighted choice

... is attained on the cumulative distribution. The searchsorted(..) function performs this search. This script return random samples of cumulative vector (1-D numpy array) c. Each element of array returned is an integer from 0 through n-1, where n is the length of c. ...
Python

Group and partition

This script enables the group_by functionality like the similar function existing in Ruby on Rails. ...
Python

Python Octree Implementation

... engine binding. The code makes use of recursive functions to insert and find nodes in the octree, ... of a 3-vector tuple. It includes a test function which relies on the random module, but the octree itself has no required dependencies. It will try to use the psyco module to speed ...
Python

Number Format function

This function takes a number (integer or float) and returns a string with the integer portion grouped by thousands and the decimal portion rounded or padded to given number of decimal places. ...
Python

Gpiv

... - Visualization of interrogation area's and correlation function. Data validation - Enabling and disabling of PIV estimators manually. - Graphical representation of histogram containing displacements at sub-pixel level to check on peak-locking effects. - Graphical representation of histogram of residuals, calculation of threshold for acceptance of PIV ...

Directory Iterator

... to provide an iterator version of the os.listdir function. The interesting property of the iterator is that you can control if you want a deep iteration of directories with the 'deep' member.After having returned the path of a directory, the iterator will yield the content of this directory if the ...
Python

Flexible directory walking

This function walks a directory tree starting at a specified ... that match our pattern(s).The standard match our tree function os.path.walk can be confusing, and is difficult to customize. It can also be slow. Here's an alternative that allows you to choose the root folder, whether to recurse down through sub-folders, ...
Python

Helpful 5 liner version of os makedirs

This script contains a function that creates missing directories for a given path and ... to be a directory path. The usual os.makedirs functions and friends are not convenient enough. They don't return the path and they always throw errors if the directories already exist. Many times you just want to make ...
Python

Recursive directory listing in HTML

This script contains a function that walks a directory path, listing the files and directories in HTML format. It can sometimes be handy to get a look at an entire directory tree, and HTML is a good way to display it. This script goes through the directory tree using os.path.walk ...
Python

Iterating through large file like objects

This function provides a simple iterator for the lines of ... before the for-loop begins iteration. Using the iterfile function allows you to process sys.stdin iteratively, which may be important if you have a lot of information coming in on standard input. ...
Python

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