Check if the data type is valid. The data type is valid if it is one of the elements of the VALID_DATA_TYPES vector. The valid data types are:
c(Median, Net MFI, Count, Avg Net MFI, Mean, Peak).

is_valid_data_type(data_type)

Arguments

data_type

A string representing the data type.

Value

TRUE if the data type is valid, FALSE otherwise.