class Bmg::Summarizer::Stddev
Standard deviation summarizer
Example:
# direct ruby usage Bmg::Summarizer.stddev(:qty).summarize(...)
Public Instance Methods
finalize(memo)
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Finalizes the computation.
Calls superclass method
# File lib/bmg/summarizer/stddev.rb, line 14 def finalize(memo) Math.sqrt(super(memo)) end