Returns the standard deviation of the field values or array elements, which is calculated by taking the square root of the variance of the field values or array elements.
StdDev( fld ) StdDev( fld, condFld ) StdDev( fld, condFld, cond ) StdDev( array )
| fld | The name of a field whose values should be used to calculate the 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 standard deviation. |
Numeric Value
StdDev({data.Temperatur}, {data.Region})
//returns the value of variance for a field Temperature grouped by Region.
// connection of values, average and variance local numbervar array dataset1 := [3,3,3,3,3]; local numbervar array dataset2 := [1,2,3,4,5]; average(dataset1); // is 3 average(dataset2); // is 3 as well! StdDev(dataset1); // is 0 because all values match the average StdDev(dataset2); // is 1.58 because the values are scattered
i-net software strives to provide accurate product documentation. Please give us your feedback using the form below.
NOTE: This form is for documentation feedback only. For technical assistance, please send an email to crystalclear@inetsoftware.de.