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PROBCHI

PROBCHI

Returns the probability from a chi-squared distribution

Category: Probability
See: CDF

Syntax
Arguments
Details
Examples

Syntax

PROBCHI(x,df<,nc>)

Arguments

x
is a numeric random variable.
Range: x [ge] 0

df
is a numeric degrees of freedom parameter.
Range: df > 0

nc
is an optional numeric noncentrality parameter.
Range: nc [ge] 0

Details

The PROBCHI function returns the probability that an observation from a chi-square distribution, with degrees of freedom df and noncentrality parameter nc, is less than or equal to x. This function accepts a noninteger degrees of freedom parameter df. If the optional parameter nc is not specified or has the value 0, the value returned is from the central chi-square distribution.

Examples

SAS Statements Results 

x=probchi(11.264,11);
 

0.5785813293


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