| G01AFF | Two-way contingency table analysis, with χ2/Fisher's exact test |
| G01ECF | Computes probabilities for χ2 distribution |
| G01FCF | Computes deviates for the χ2 distribution |
| G01GCF | Computes probabilities for the non-central χ2 distribution |
| G01JCF | Computes probability for a positive linear combination of χ2 variables |
| G01JDF | Computes lower tail probability for a linear combination of (central) χ2 variables |
| G05LCF | Generates a vector of random numbers from a χ2 distribution, seeds and generator number passed explicitly |
| G08CGF | Performs the χ2 goodness of fit test, for standard continuous distributions |
| G11AAF | χ2 statistics for two-way contingency table |
| G13DNF | Multivariate time series, sample partial lag correlation matrices, χ2 statistics and significance levels |