Mean Absolute Percentage Error1

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  MAPE (Mean Absolute Percentage Error) Information MAPE (Mean Absolute Percentage Error) is a measure of the accuracy of a forecasting model, expressed as a percentage of the actual values. MAPE is defined as the average of the absolute percentage errors (APEs) over the forecast horizon, multiplied by 100% to express it as a percentage: MAPE = (1/n) * sum(|(actual - forecast)/actual|) * 100% APE measures the size of the errors in the.. Zettelkasten/Terminology Information 2023. 2. 26.