stddev

Returns the standard deviation of a value sequence.

If the sequence isn’t a numerical sequence, magma exception is thrown.

If the sequence is empty, 0 is returned. If the sequence is null, null is returned. Each null value of the sequence is turned into 0. This method also accepts a non-sequence value, in which case, it is returned untouched.

See also max, min, sum, avg, reduce.

Syntax

stddev()

Examples

$('StandingHeight:Measure.RES_HEIGHT_MEASURE').stddev();