Raku Land

Statistics

zef:sumankhanal

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NAME

Statistics - Raku module for doing statistics

SYNOPSIS

use Statistics;

my @data1 = [6,6,4,6,8,6,8,4,4,6,6,8,8,8,8,8,8,4,4,4,4,8,8,8,8,4,4,4,8,6,8,4];
my @data2 = [160.0,160.0,108.0,258.0,360.0,225.0,360.0,146.7,140.8,167.6,167.6,
            275.8,275.8,275.8,472.0,460.0,440.0,78.7,75.7,71.1,120.1,318.0,304.0,
            350.0,400.0,79.0,120.3,95.1,351.0,145.0,301.0,121.0];

# central tendency
mean(@data1); # 6.1875
median(@data1); # 6

# sample standard deviation
sd(@data1); # 1.7859216469465444

# population standard deviation
sd(@data1, sample => False); # 1.757795138803154

# Coefficient of variation
coef_variation(@data2); # 53.71779066522493

# Five number summary
fivenum(@data2); # (71.1 120.65 196.3 334 472)

# correlation coefficients
pearson_cor_coef(@data1, @data2); # 0.9020328721469989
spearman_cor_coef(@data1, @data2); # 0.9276515785415314
kendall_cor_coef(@data1, @data2); # 0.8144262510988963

# Biweight_midcorrelation 
# more robust, less sensitive to outliers
bi_cor_coef(@data1, @data2); # 0.9146470012038392

DESCRIPTION

Statistics is a module to make it easier to do statistics in Raku programming language.

Many things are in the roadmap, only few are done.

NOTE

Because of absence of an easy to use matrix library like numpy in Raku, implementing many of the tests is difficult. Whatever can be done with Python statistics module will all be implemented.

ISSUES

https://github.com/sumanstats/Statistics/issues

PULL REQUESTS

Improvement of the code base and efficient implementation of the algorithms are welcome. Send PR.

AUTHOR

Dr Suman Khanal suman81765@gmail.com

COPYRIGHT AND LICENSE

Copyright 2022 Dr Suman Khanal

This library is free software; you can redistribute it and/or modify it under the Artistic License 2.0.