Statistics

Basic statistical analysis. For my MATH130 class at Marist.

Usage

Summaries

With the Statistics::Summary class, you can get the following summaries of quantitative data:

Five-Number Summary

Statistics::Summary.five_number_summary([42, 23, 4, 23, 12, 42, 23, 12, 32, 12, 32, 43, 34]) # => {:minimum => 4, :q1 => 12, :median => 23, :q3 => 34, :maximum => 43}

Extended Summary

Statistics::Summary.extended_summary([42, 23, 4, 23, 12, 42, 23, 12, 32, 12, 32, 43, 34]) # => {:minimum => 4, :q1 => 12, :median => 23, :q3 => 34, :maximum => 43, :range => 4..43, :mean => 25.0, :iqr => 22, :fences => -21.0..67.0, :outliers => [], :variance => 170.08333333333334, :std_dev => 13.041600106326422, :sum => 334, :count => 13}