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Name
Symbol frequencies table
This online calculator builds symbol frequency table for a given message
Shannon Entropy
This online calculator computes Shannon entropy for a given event probability table and for a given message
Huffman coding
This online calculator generates Huffman coding based on a set of symbols and their probabilities
Wordpress plugin
With Planetcalc plugin for Wordpress you can easily insert any planetcalc calculator in your wordpress-based site or blog pages.
Hartley's formula
Hartley's formula to determine the amount of information contained in a message with length n.
Shannon coding
This online calculator generates Shannon coding based on a set of symbols and their probabilities
Shannon-Fano coding calculator
This online calculator generates Shannon-Fano coding based on a set of symbols and their probabilities
Conditional entropy
This online calculator calculates entropy of Y random variable conditioned on X random variable and X random variable conditioned on Y random variable given a joint distribution table (X, Y) ~ p
Specific Conditional Entropy
This online calculator calculates entropy of Y random variable conditioned on specific value of X random variable and X random variable conditioned on specific value of Y random variable given a joint distribution table (X, Y) ~ p
Joint Entropy
This online calculator calculates joint entropy of two discrete random variables given a joint distribution table (X, Y) ~ p
Decision tree builder
This online calculator builds a decision tree from a training set using the Information Gain metric
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