.validate_exogenous: Validate future exogenous variables (if applicable)
This is a private function of 'nixtlar'
Description
Validate future exogenous variables (if applicable)
This is a private function of 'nixtlar'
Usage
.validate_exogenous(df, h, X_df)
Value
Returns a vector with the exogenous variable names if the validation is successful. If the validation fails, it stops execution and returns an error message, indicating what went wrong.
Arguments
df
A tsibble or a data frame with time series data.
h
Forecast horizon.
X_df
A tsibble or a data frame with future exogenous variables.