| G01AFF | Two-way contingency table analysis, with χ2/Fisher's exact test |
| G01JCF | Computes probability for a positive linear combination of χ2 variables |
| G01JDF | Computes lower tail probability for a linear combination of (central) χ2 variables |
| 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 |