How to use MLmetrics package In R Language

In R, the MLmetrics package provides us the MAPE() function using which we can calculate the MAPE in R. This function has the following syntax:

Syntax: MAPE(F_t, A_t)

Parameters:

Here,

F_t: It represent forecasted values

A_t: It represents actual values

Example:

R

# Create a dataframe
dataframe <- data.frame(At=c(15, 40, 41, 32, 
                             48, 28, 21, 47, 36,
                             37, 11, 14),
                   Ft=c(32, 41, 43, 54, 66, 51, 
                        46, 45, 37, 33, 25, 26))
 
# Print the dataframe
dataframe

Output:

Now to find out the MAPE of the above data frame, we can use MAPE() function:

R

# Import library
library("MLmetrics")
 
# Create a dataframe
dataframe <- data.frame(At=c(15, 40, 41, 32,
                             48, 28, 21, 47,
                             36, 37, 11, 14),
                   Ft=c(32, 41, 43, 54, 66, 
                        51, 46, 45, 37, 33, 
                        25, 26))
 
# Compute MAPE
MAPE(dataframe$Ft, dataframe$At)