An internal function that warns the user when a transformation can not be done on a set of numbers.
transformationWarning(Data, Trans, VecName)
A data set.
The transformation being tested. Gives warning for the values of: c('Log', Log1', Square_Root', 'Arcsin').
The name of the variable to be transformed.
Will display a warning message to the user, when appropriate.
This function is called by responseTransform
.