# skbio.math.diversity.alpha.shannon¶

skbio.math.diversity.alpha.shannon(counts, base=2)[source]

Calculate Shannon entropy of counts (H), default in bits.

Parameters: counts : 1-D array_like, int Vector of counts. base : scalar, optional Logarithm base to use in the calculations. double Shannon diversity index H.

Notes

The implementation here is based on the description given in the SDR-IV online manual [R60], except that the default logarithm base used here is 2 instead of $$e$$.

References