| varhandle-package | A Package to Work and Handl Variables Easier, Convenient and Flawless |
| check.numeric | Check the vector's possiblity to convert to numeric |
| inspect.na | inspect matrix or data.frame regarding NAs |
| pin.na | Pinpoint NAs in a vector, matrix or data.frame |
| rm.all.but | Remove all variables except those that you mention |
| save.var | Save variables separate files |
| to.dummy | Convert categorical vector into dummy binary dataframe |
| unfactor | Convert factor into appropriate class |
| var.info | Get a detailed list of variables |
| varhandle | A Package to Work and Handl Variables Easier, Convenient and Flawless |