

min(@data), max(@data), range(@data), sum(@data), count(@data) 
Returns the minimum value, maximum value, range (max  min),
sum, or count of values in @data. Undefined values are ignored.
count(@data) simply returns scalar(@data). <B>Please noteB> that this module does <B>notB> ignore undefined values in your data; instead, those are <B>treated as zeroB>. 
mean(@data), median(@data), mode(@data)  Calculates the mean, median, or mode average of the values in @data. Undefined values are ignored. (In the event of ties in the mode average, their mean is returned.) 
variance(@data), stddev(@data)  Returns the standard deviation or variance of @data for a sample (same as Excel’s STDEV). This is also called the Unbiased Sample Variance and involves dividing the sample’s squared deviations by N1 (the sample count minus 1). The standard deviation is just the square root of the variance. 
variancep(@data), stddevp(@data)  Returns the standard deviation or variance of @data for the population (same as Excel’s STDEVP). This involves dividing the squared deviations of the population by N (the population size). The standard deviation is just the square root of the variance. 
statshash(@data)  Returns a hash whose keys are the names of all the functions listed above, with the corresponding values, calculated for the data set. 
statsinfo(@data)  Returns a string describing the data set, using the values detailed above. 
frequencies(@data)  Returns a hash. The keys are the distinct values in the data set, and the values are the number of times that value occurred in the data set. 
The :all import tag imports all exportable functions from this module into the current namespace (use with caution). More specifically, these functions are the following: min, max, range, sum, count, mean, median, mode, variance, stddev, variancep, stddevp, statshash, statsinfo, and frequencies.To import the statistical functions, use the import tag :funcs. This imports all of the abovementioned functions, except for statshash, statsinfo, and frequencies.
Use :stats to import statshash(@data) and statsinfo(@data).
<https://github.com/brianary/StatisticsLite>
Brian Lalonde <brian@webcoder.info>, stddev(@data), stddevp(@data), variance(@data), variancep(@data), additional motivation by Nathan Haigh, with kind support from Alexander Zangerl.The project lives at https://github.com/brianary/StatisticsLite
Copyright 2000 Brian Lalonde <brian@webcoder.info>, Nathan Haigh, Alexander Zangerl, and Ton Voon.This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl(1).
perl v5.20.3  LITE (3)  20160318 
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