Talk:Regression analysis: Difference between revisions
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== Misleading sidebar == |
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The chart at the top of the "regression series" sidebar is not appropriate to include in any topic in which the form of regression being discussed is NOT that of the chart. |
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It's EXTREMELY confusing to find an unrelated chart, in the wikipedia position that normally displays a RELATED one. |
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== Terminology == |
== Terminology == |
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I would vote for changing that "General linear regression" paragraph title to "Multiple linear regression". |
I would vote for changing that "General linear regression" paragraph title to "Multiple linear regression". |
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== Merger proposal == |
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I propose that [[Curve fitting]] be merged into [[Regression analysis]]. The content in the "Curve fitting" article is largely redundant with that in "Regression analysis" and its linked pages, and merging any unique content it may contain into "Regression" will not cause any problems as far as article size or undue weight is concerned. "Curve fitting" is used colloquially in place of "regression analysis" to describe the same procedure, which suggests to me that a redirect would be appropriate. [[Regression analysis]] would benefit from at least a brief comment on the common use of the term "curve fitting", noting this equivalence, since the term "regression" is opaque, and can be confusing. [[Regression analysis#History]] might be a good place to do this, since it does talk about how "regression" is historical jargon (originally describing how a curve was fit to a set of points which just so happened to represented heights that 'regressed' the the population mean). Leaving the articles as they are tends to promote a false distinction. [[User:Aaron0h|aaron0h]] ([[User talk:Aaron0h|talk]]) 17:45, 19 January 2018 (UTC) |
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*'''Oppose'''. The two topics have overlap, but they are distinct. Regression implies a statistical fit. Curve fitting can include cases of an exact fit. See lead paragraph of [[Curve fitting]]. [[User:Glrx|Glrx]] ([[User talk:Glrx|talk]]) 19:29, 16 February 2018 (UTC) |
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*'''Oppose.''' Most of the article [[Curve fitting]] is about things other than regression. [[User:Loraof|Loraof]] ([[User talk:Loraof|talk]]) 16:50, 5 May 2018 (UTC) |
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== Exponential regression and power law regression == |
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I'm surprised neither this article, nor [[Regression (disambiguation)]], nor [[Linear regression]] mention exponential and power regression. Statisticians may have reason to consider these of marginal relevance, but I imagine a large fraction of page visitors to these pages are high-school students, and those regressions are curriculum for quite a lot of those. |
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I don't propose we should make a large fuss about these methods, but covering briefly that |
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* with logarthmic transformations, exponential functions and power laws can be converted into linear relationships, |
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* computing tools like calculators and spreadsheet programs etc. often have this built in, |
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* the result from these in general differ a little from those of a straightforward least-squares fit within the same function families (used by certain other computing tools) because the logarithmic transform implies that it is the sum of the squares of the ''relative'' errors that is minimized, where the straightforward fits mimimize the sum of the squares of the ''absolute'' errors |
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would make sense. |
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Where to put it (if I'm right it's not already somewhere)? |
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One possibility that may not seem quite logical but that may produce the most efficient presentation is to relegate it to a new section in [[Linear regression]], with pointers to that section here and in [[Regression (disambiguation)]].--[[User:Nø|Nø]] ([[User talk:Nø|talk]]) 07:52, 7 June 2018 (UTC) |
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Latest revision as of 16:13, 10 July 2024
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Misleading sidebar
[edit]The chart at the top of the "regression series" sidebar is not appropriate to include in any topic in which the form of regression being discussed is NOT that of the chart.
It's EXTREMELY confusing to find an unrelated chart, in the wikipedia position that normally displays a RELATED one.
Terminology
[edit]this may well be an issue with the field of statistics in general and not necessarily one specific to Wikipedia but here it goes.
I found circular confusion by navigating across hyperlinks on this article and related ones, which I think should be rectified. under "General linear regression" a definition is given, which I rather think should be the one of "multiple linear regression". indeed, if one follows the link to the in-depth article on linear regression, this is how "multiple linear regression" is defined, with the added remark that this term is distinct from multivariate linear regression following which one in fact lands on the general linear model article.
I would vote for changing that "General linear regression" paragraph title to "Multiple linear regression".