deviation

get population standard deviation of given collection of numbers

Parameters

deviation collection :block

Attributes

samplecalculate the sample standard deviation

Returns

  • :floating

Examples

copy
arr:  [1 2 3 4]
arr2: [3 120 4 7 87 2 6 34]

print deviation arr         ; 1.118033988749895
print deviation arr2        ; 42.70959347734417

deviation.sample arr        ; => 1.290994448735806
deviation.sample arr2       ; => 45.65847597731914

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