Comparison of MAE and Mean to illustrate the error magnitude

by Anne Bierhoff   Last Updated October 19, 2019 21:19 PM - source

I have predicted a time series with positive, zero and negative values. As error measurement I used the Mean Absolute Error (MAE).

In order to give the reader of my paper a better understanding whether the values of MAE are good or bad, I have considered presenting it as follows:

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Is it legitimate to present it this way? Or is it actually meaningless because of the negative values?



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