# FTEST

Spread for WinForms provides advanced software components that support Excel import/export, full cell customization, an extensive calculation engine with over 450 functions and more, all with zero dependencies on Excel.

## Content



This function returns the result of an F-test, which returns the one-tailed probability that the variances in two arrays are not significantly different.

## Syntax

FTEST(*array1*,*array2*)

## Arguments

The arguments may be arrays of values.

## Data Types

Accepts arrays of numeric data for both arguments. Returns numeric data.

## Examples

`FTEST(A1:D34,A35:D68)`
`FTEST(R1C1:R34C4,R35C1:R68C4)`

## Version Available

This function is available in product version 1.0 or later.

## See Also

[ZTEST](/spreadnet/docs/latest/online-formula/formulas-functionsall/formulas-functsTtoZ/FunctionZTEST) \| [TTEST](/spreadnet/docs/latest/online-formula/formulas-functionsall/formulas-functsTtoZ/FunctionTTEST) \| [Statistical Functions](/spreadnet/docs/latest/online-formula/formulas-overview/formulas-functs/formulas-functtypes/formulas-functsstats)