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| %+% | Utility functions to treat characters |
| %+%-methods | Utility functions to treat characters |
| %n% | Utility functions to treat characters |
| correlation | Bivariate correlations |
| cross | Crosstabs |
| freq | Frequencies |
| numtostr | Utility functions to treat characters |
| paste | Utility functions to treat characters |
| print.corr | Bivariate correlations |
| print.cross | Crosstabs print methods |
| print.frequencies | Frequencies |
| sum.n | sum weighted on the number of non-missing values |
| Total | Crosstabulations using formula |
| xf | Methods that apply a function across a levels of one or more factors |
| xtab | Crosstabulations using formula |