WorksheetFunction.ChiSq_Inv_RT Method (Excel)
Returns the inverse of the right-tailed probability of the chi-squared distribution.
Version Information
Version Added: Excel 2010
Syntax
expression .ChiSq_Inv_RT(Arg1, Arg2)
expression A variable that represents a WorksheetFunction object.
Parameters
Name |
Required/Optional |
Data Type |
Description |
|---|---|---|---|
Arg1 |
Required |
Double |
A probability associated with the chi-squared distribution. |
Arg2 |
Required |
Double |
The number of degrees of freedom. |
Return Value
Double
Remarks
If probability = ChiSq_Dist_RT(x,...), then ChiSq_Inv_RT(probability,...) = x. Use this function to compare observed results with expected ones in order to decide whether your original hypothesis is valid:
If either argument is nonnumeric, ChiSq_Inv_RT generates an error.
If probability < 0 or probability > 1, ChiSq_Inv_RT generates an error.
If degrees_freedom is not an integer, it is truncated.
If degrees_freedom < 1 or degrees_freedom ≥ 10^10, ChiSq_Inv_RT generates an error.
Given a value for probability, ChiSq_Inv_RT seeks that value x such that ChiSq_Dist_RT(x, degrees_freedom) = probability. Thus, precision of ChiSq_Inv_RT depends on precision of ChiSq_Dist_RT. ChiSq_Inv_RT uses an iterative search technique. If the search has not converged after 64 iterations, the function generates an error.