Calculate accuracy based on MSTL

Calculate accuracy based on MSTL

accuracy_mstl(ts_info, function_name, length_out, mtd)

Arguments

ts_info	list containing training and test part of a time series
function_name	function to calculate the accuracy function, the arguments of this function should be forecast, training and test set of the time series
length_out	number of measures calculated by the function
mtd	Method to use for forecasting the seasonally adjusted series

Value

accuracy measure calculated based on multiple seasonal decomposition