Returns the population standard deviation, calculated by taking the square root of the variance over all records or array elements.
PopulationStdDev( fld ) PopulationStdDev( fld, condFld ) PopulationStdDev( fld, condFld, cond ) PopulationStdDev( array )
| fld | The name of a field whose values should be used to calculate the population standard deviation. |
|---|---|
| condFld | The name of the field that groups the values of fld (if fld isn't an array). |
| cond | A string declaring the type of grouping to be used on condFld. This only makes sense for groups based on Date, DateTime, Time, and Boolean fields. See Summary Field Conditions for a list of strings you can use here. |
| array | The name of an array variable whose values should be used to calculate the population standard deviation. |
Numeric value.
PopulationStdDev({data.Temperatur}, {data.Region})
//returns the value of variance for a field Temperature grouped by Region.
PopulationStdDev([{f1}, {f2}, {f3}, {f4}])
-> 3,57 (assuming that f1=2, f2=2, f3=10, f4=8)