libstatistics-welford-perl - 0.02-3 main

Statistics::Welford provides standard statistics (mean value,
variance, standard deviation, minimum and maximum value as well as
the number of elements) using Welford's algorithm.
.
Welford's algorithm is much more resource efficient compared to the
naïve algorithm implemented in e.g. Statistics::Basic::StdDev or
Catmandu::Fix::stat_stddev. It especially does not need to load all
values into RAM at the same time, i.e. does not require an array
containing all values.
.
See also
https://en.wikipedia.org/wiki/Variance/Algorithm#Online_algorithm