sample-ste ( seq -- x )
Statistics

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Vocabulary
math.statistics

Inputs

seq	a sequence

Outputs

x	a non-negative real number

Word description
Computes the standard error of the mean for seq. It's defined as the standard deviation divided by the square root of the length of the sequence, and measures uncertainty associated with the estimate of the mean.

Examples

USING: math.statistics prettyprint ; { -2 2 } sample-ste .
2.0

See also
ste-ddof, population-ste

Definition

IN: math.statistics

: sample-ste ( seq -- x ) 1 ste-ddof ;