Class: Bmg::Summarizer::Stddev

Inherits:

Variance

• Object
• Summarizer
• Variance
• Bmg::Summarizer::Stddev

Defined in:

lib/bmg/summarizer/stddev.rb

Overview

Standard deviation summarizer

Example:

# direct ruby usage
Bmg::Summarizer.stddev(:qty).summarize(...)

Instance Method Summary

• #finalize(memo) ⇒ Object

  Finalizes the computation.

Methods inherited from Variance

#_happens, #least

Instance Method Details

#finalize(memo) ⇒ Object

Finalizes the computation.

# File 'lib/bmg/summarizer/stddev.rb', line 14

def finalize(memo) 
  Math.sqrt(super(memo))
end