I have a regression model for determining rentals, and the prediction is the number of rentals by hour, not a 0/1 binary outcome.
Therefore for a performance metric I am principally looking at the Mean Absolute Error (MAE).
My question is, is there a way to graphically plot the MAE?
My dataset also needs to look at how the model's performance varies the further it predicts into the future, so I'd like to plot the MAE of the regression prediction on the test data against the time it is predicting.
Ideally I'm hoping for a package in R for plotting the MAE graphically, essentially an MAE equivalent of the ROCR package for plotting the ROC curve?