Talk:Pearson product-moment correlation coefficient

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Is there a particular reason that the formula in the article is linked as an seperate image, rather than using Wikipedia's TeX markup? I noticed lots of experimenting on in the article history. -- DrBob 21:50 May 5, 2003 (UTC)

TeX insisted on putting r = in the numerator. That was probably my fault but having spent enough time on it I decided to put in an image till I could figure it out. The image is less than ideal, though, so I will be trying again to write the formula in TeX. Jfitzg

It's easy when you know how, eh? My TeX looked something like that, but obviously not enough. Thanks.Jfitzg

I remember. I had \sum in the wrong place. I was tired. Really.

It's also the curly braces {} that tell TeX how to do the grouping, rather than showing up in the text like normal braces (). They look rather too similar in some fonts, so it can be hard to spot the difference. See the Tex markup article for more examples. -- Anon.

Thanks, anon. I finally got round to converting the others.

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This article could benefit from a little example with some numbers and an actual calculation of r. AxelBoldt 22:26 22 May 2003 (UTC)

Feel free.

[edit] Merge with Correlation

This topic is covered in Correlation. I move that we merge the two and have this page redirect to Correlation.