Difference between revisions of "Stdev"
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Revision as of 06:25, 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
