entropy-calculation

entropycalc.py

Provides library functions for calculating the entropy of a file.

It can be run by itself python entropycalc.py filename will generate a PDF with a histogram of the data in a file. It will print to the terminal the entropy of that particular file as well.

Function definitions

calc_entropy - Calculates the entropy of an array that is pased in.

entropy_of_file - Calculates the entropy of an entire file.

entropy_of_file_chunks - Calculates the entropy of an entire file, splitting it into chunks of a specified size. Appends to a specified output file.

scrapedir.py

Provides library functions for calculating the entropy of files within a specified directory.

It can be run by itself in two ways.

python scrapedir.py input_dir output_file will append to an output_file, and calculate the entropy of all files within the input_dir.

python scrapedir.py input_dir output_file size_of_chunk will append to an output_file, and calculate the entropy of size_of_chunk byte-wide chunks of the files within the input_dir.

Function definitions

scrapeDirectory - Scrapes a specified directory, appends to an output file, and takes in a particular chunksize.

scrapeDirectoryTotals - Scrapes a specified directory, appends to an output file, over the entire files, not just a specified chunksize.

plot.py

This is from Srikanth Sundaresan. Many thanks Srikanth!