Talk:Multidimensional scaling

I am not that deep into the topic, but as far as I see it, the formulas for stress as presented in the sections of metric and non-metric MDS are not specific to

Talk:Multidimensional scaling
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Stress Formula in mMDS vs NMDS

Latest comment: 2 years ago1 comment1 person in discussion

I am not that deep into the topic, but as far as I see it, the formulas for stress as presented in the sections of metric and non-metric MDS are not specific to their section other than the NMDS formula using the function f.

Especially, as far as I see it, the divisor used in the formula in the NMDS section (sum d^_ij²) is simply normalization that makes it robust vs scaling and could as well be present in the section of mMDS.

Maybe the presentation should be reworked, the formulas set in a unified format (no ||x_i-x_j|| anymore) for better comparison, and the possibility of weights w_ij added.

As I am not that deep into the topic, I am hesitant to do any direct edit here, though.

2001:638:208:3606:39F0:EDA6:A8CD:80 (talk) 14:23, 13 June 2024 (UTC)Reply

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