validating

Validating methods for MMM classes.

Functions

validation_method_X(method)	Tag a method as a validation method for the predictor columns.
validation_method_y(method)	Tag a method as a validation method for the target column.

Classes

ValidateChannelColumns()	Validate the channel columns.
ValidateControlColumns()	Validate the control columns.
ValidateDateColumn()	Validate the date column.
ValidateTargetColumn()	Validate the target column.