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2009-02-24, 22:09
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#1 |
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226508 Posts |
Spearman's rank correlation coefficient
Hi. I am not Flatlander, I am a 10 year old. ;-)
How did the constant '6' get into the formula? Last fiddled with by akruppa on 2009-02-24 at 23:11 Reason: Note: post was in its own thread, I merged threads into one |
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2009-02-25, 04:58
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#2 | |
"Mark"
Feb 2003
Sydney
3·191 Posts |
Spearman rank correlation coefficient
Quote:
A bit more detail: The Spearman rank correlation coefficient is just the more common Pearson (or product-moment) correlation coefficient, using the ranks of the data instead of the original data. Because the ranks are just the numbers 1 to n (if there are no ties) the formula can be simplified a lot, using mostly the formula for the sum of the numbers 1 to n & the formula for the sum of their squares. I hope that helps enough. (Probably broken rule 2 & given too much overt detail.) Anyway, feel free to ask for more. Moderators: I think this should be a separate thread, so we don't have statistics formula posts mixed in with comet ones. And our not-Flatlander poster could more easily find it again, too. Last fiddled with by akruppa on 2009-02-25 at 13:17 Reason: Moved posts into separate thread again, as requested |
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2009-03-03, 19:56
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#3 |
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120058 Posts |
Thank you.
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