Cumulative standard deviation: Difference between revisions

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=={{header|Crystal}}==
=={{header|Crystal}}==
⚫
{{trans|Ruby}}
===Object===
===Object===
⚫
{{trans|Ruby}}
<lang ruby>class StdDevAccumulator
<lang ruby>class StdDevAccumulator
def initialize
def initialize
Retrieved from "https://rosettacode.org/wiki/Cumulative_standard_deviation"