dstats ~master (2018-01-23T10:54:54Z)

entropyCounts

dstatsinfotheory

This function calculates the Shannon entropy of a forward range that is treated as frequency counts of a set of discrete observations.

double
entropyCounts
(
T
)
(
T data
)
if (
isForwardRange!(T) &&
doubleInput!(T)
)

Examples

double uniform3 = entropyCounts([4, 4, 4]);
assert(approxEqual(uniform3, log2(3)));
double uniform4 = entropyCounts([5, 5, 5, 5]);
assert(approxEqual(uniform4, 2));

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