Doubt about MAPE

Installations & Python Packages
1

Course Name: Financial Time Series Analysis for Trading, Section No: 7, Unit No: 7, Unit type: Notebook

Hello, in this notebook we find the formula for the Mean Absolute Percentage Error - MAPE as it:

https://i.imgur.com/GByin1f.png

However we use the following code:

MAPE = 100 * (data["error"] / data["Observed JPM"]).abs().mean()

Here we're multiplying by 100 and not 100/n. Am I missing something?

2

Hi Daniel,



The .mean() function covers the "/n" part.

3

Understood, thanks!