Talk:Mean absolute percentage error
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The contents of the WMAPE page were merged into Mean absolute percentage error on 16 November 2022. For the contribution history and old versions of the redirected page, please see its history; for the discussion at that location, see its talk page. |
The formula is not the same as what I learned in my business class right now. ~Fulano (visitor)
Do not merge other error metrics with this article edit
Please do not merge WMAPE or any other article into this! WMAPE is not an "alternative definition of MAPE" as some of the unfortunate edits suggest. Wikipedia has separate articles for different metrics: Mean Absolute Scaled Error (MASE), Symmetric Mean Absolute Percentage Error (sMAPE), Mean Directional Accuracy (MDA) etc. and should continue to have so. — Preceding unsigned comment added by Manu.m (talk • contribs) 07:45, 30 June 2022 (UTC)
Percentage & multiplication by 100 edit
In the current form, the formula is
The article then says "The MAPE is also sometimes reported as a percentage, which is the above equation multiplied by 100". Isn't the formula already multiplied by 100?91.68.56.209 (talk) 07:16, 16 June 2021 (UTC)
Reorganize the article edit
This article should be restructured because
- issues related to the MAPE are listed both in introduction and in the section "issues"
- it lacks a section on MAPE regressions, since this is also very popular metric in Machine Learning (like Mean squared error)
(unsigned, posted by Adm4749d) North8000 (talk) 23:33, 13 December 2018 (UTC)
Source edit
A good source for the formula is the following article: https://www.sciencedirect.com/science/article/pii/S0169207016000121
Proposed merger edit
I propose merging WMAPE into Mean absolute percentage error. Weighted MAPE is merely a variation of MAPE. Having two separate articles is potentially redundant and results in significant overlap. Merger is recommended per WP:OVERLAP.
I performed the merger on June 4. See edits to WMAPE and MAPE. The merger was reverted on June 30, so I am now seeking consensus on whether to merge.
@Manu.m -- I appreciate your input. Thanks! Edge3 (talk) 02:52, 8 July 2022 (UTC)
- Support. As Manu.m pointed out in the edit summary, "Alternative definitions" is the wrong header name to use. But there is too much similarity between the topics to have separate articles. The content at WMAPE should be placed into a top-level section called "Weighted mean absolute percentage error". Wikiacc (¶) 02:51, 12 July 2022 (UTC)