**Public Function tInverse( _
ByVal vProbability As Variant _
, ByVal vDF As Variant _
, Optional ByVal vTails As Variant = 2 _
) As Variant**

**Inverse t Cumulative Distribution Function **

**See also:** tCDF Function
tRandom Function
tPDF Function
Declarations Topic
TINV Function (Microsoft Excel)

**vProbability:** Function returns Null if vProbability is not between 0 and 1 inclusive.

**vDF:** Number of degrees of freedom. Number is rounded to the nearest integer. Function returns Null if vDF is less than or equal to zero (<=0).

**vNumTails:** The number of tails on the distribution, either one or two. Number is truncated to the nearest integer. Function returns Null if vNumTails is not either one (1) or two (2). Copyright 1996-1999 Entisoft

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