Difference between revisions of "Stdev"
| Line 1: | Line 1: | ||
[[Category:Functions_Used_in_where_Expressions]] | [[Category:Functions_Used_in_where_Expressions]] | ||
| − | | + | {{HelpFiles}} |
====stdev==== | ====stdev==== | ||
Revision as of 10:12, 12 December 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
