Corrected a bug in backward selection procedure when one variable name is contained in another variable name (e.g. "Mitosis" and "AtyMitosis").
Correceted a bug in forward selection procedure when a as.factor() variable is to be added to the model.
Corrected a bug in backward selection procedure in how scope.min was checked to terminate the selection procedure.
Added checks to make sure that ‘scope.min’ formula input is correct
Simplified how std error was computed
Fixed a bug related to outputting results in forward selection