Talk:Spearman's rank correlation coefficient
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[edit] Move
This page was formerly at "Spearman's ρ" -- however, this breaks "move page" and is against the general naming principle that names should be the most common name, in English, where available. User:The Anome
- Well, this may not be the most common name in English, but the change makes sense because it facilitates linking, especially now that the main alternative titles have redirect pages. I'll remember that next time. Thanks. User:Jfitzg
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- Would Spearman's rank correlation coefficient be nicer? -- Oliver P. 16:37 28 May 2003 (UTC)
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- That might definitely be better. Perhaps the main article should be there. John F.
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- So I moved it. Should have all the bases covered now. John F.
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[edit] Clarifications
From the article:
- The value of ρ is equivalent to the Pearson product-moment correlation coefficient for the correlation between the ranked data.
Is this an identity or an approximation? If so, it it by definition, by co-incidence, or just for some particular family of distributions?
-- —The preceding unsigned comment was added by 217.158.203.203 (talk • contribs).
- Thanks. I'll clarify this. It's a special case of the Pearson. -- —The preceding unsigned comment was added by Jfitzg (talk • contribs).
[edit] Questions
Does it anywhere in this article say that p is always a number between 1 and -1, and what high and low values mean? -- —The preceding unsigned comment was added by Matt me (talk • contribs).
[edit] Request for help
its related to spearson`s rank correlation. the coffecient of correlation of two firms is -.10714 find the number of compnies if sum of square of diference is 62 -- —The preceding unsigned comment was added by 61.2.189.36 (talk • contribs).
[edit] Suggestion
It may be helpful to explain how the data is ranked eg from highest to lowest... and apparently Spearman's does assume the direction of relationship is constant eg rising or falling. -- —The preceding unsigned comment was added by 82.37.10.168 (talk • contribs).
- I agree, i think maybe having an example question would be very helpful and an explanation on the ranks as well. 82.198.250.66 08:20, 19 September 2006 (UTC)
[edit] One tailed, two tailed
The difference between a one talied and two talied test isn't mentioned, not that I know what it is, neither is the need for a null hypothesis. Sam Hayes 09:20, 17 April 2006 (UTC)
[edit] help
it would be helpful if this was explained easier since i am only a gcse student. i do not understand what is going on. :( -- —The preceding unsigned comment was added by 86.7.149.45 (talk • contribs).
