insanitybit / shannon-entropy Goto Github PK
View Code? Open in Web Editor NEWA rust library to calculate the shannon entropy of a string.
License: Apache License 2.0
A rust library to calculate the shannon entropy of a string.
License: Apache License 2.0
I noticed that the latest version from the repository is not published to Crates.
Please publish it.
It would be helpful for users of the API to be able to specify their own alphabet, so that entropy can be calculated within the context of that alphabet.
I've spotted a small improvement: the ln(2) value calculated here:
let log_div = (2.0 as f32).ln();
is also available as std::f32::consts::LN_2
.
I do not know to what extent the compiler optimizes this away anyway, but using the built-in constant seems cleaner.
In the case of ASCII characters the BTreeMap can be avoided and the character can be used as an index into an array.
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