Stdev: Difference between revisions

Revision as of 04:25, 28 March 2011

stdev

Estimates standard deviation based on a sample. The standard deviation is a measure of how widely values are dispersed from the average value (the mean). All empty values are ignored.

Calculates

where x is the sample mean average(DCSColumn)… and n is the sample size

Syntax

stdev(dcsColumn)

Arguments

dcsColumn: is a numeric dcs column (column whose data type is Number)

Example

stdev(C1) where C2 >2;

Availability

All

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