| dtdiff | Distribution Functions for Approximated t-Difference |
| ptdiff | Distribution Functions for Approximated t-Difference |
| qtdiff | Distribution Functions for Approximated t-Difference |
| rtdiff | Distribution Functions for Approximated t-Difference |
| tdiff_distributions | Distribution Functions for Approximated t-Difference |
| validate_approximation | Validate Welch-Satterthwaite Approximation |
| ws_tdiff_equal_params | Equal Parameters Special Case |
| ws_tdiff_multivariate_general | Welch-Satterthwaite Approximation for General Multivariate t-Differences |
| ws_tdiff_multivariate_independent | Welch-Satterthwaite Approximation for Multivariate t-Differences (Independent) |
| ws_tdiff_univariate | Welch-Satterthwaite Approximation for Univariate t-Differences |