Sandy, "Multivariate correlation coefficient" is a term you, not I, used. Sorry but I find it both fruitless and non productive to follow this thread any longer. And, I'll bet that other list readers share that opinion. - Bill Howard On Jul 17, 2011, at 2:10 PM, Alexander Paterson wrote: > The fact of the matter is that there is no such thing as a multivariate > correlation coefficient. > > It simply doesn't exist. My guess is that you assumed that such a concept > existed and tried to calculate it. Now you're surprised and offended that > someone doubts the validity of your calculations. I repeat: there is no such > thing as a multivariate correlation coefficient. > > The only correlation coefficient known to man is that for a bivariate normal > distribution. > > As soon as you move to 3 or more variables, the concept of a correlation > coefficient is replaced by something called R-squared (also known as the > coefficient of determination), which, in mathematical modelling, is defined > as that proportion of the variance of the variable that you are trying to > model, that is explained by the model. > > > > -----Original Message----- > From: dna-r1b1c7-bounces@rootsweb.com > [mailto:dna-r1b1c7-bounces@rootsweb.com] On Behalf Of Bill Howard > Sent: 17 July 2011 17:00 > To: dna-r1b1c7@rootsweb.com > Subject: Re: [R-M222] Calculation of a correlation coeficient > > You still did it wrong, Sandy. > Read my reply again. And please think more carefully about what I wrote. > I think we are wasting the readers' time where there are more important > issues to which we should be paying attention. > (Oops, I see that my full reply did not get on the list. Too bad, because it > gave more reasons why you are wrong. I did not state in my full reply that > the answers you got were correct, but I did say that you had approached it > wrong and that I did not use the CORREL function in Excel, as you > contended.) > - Bye from Bill Howard > > On Jul 17, 2011, at 10:05 AM, Alexander Paterson wrote: > > > R1b1c7 Research and Links: > > http://clanmaclochlainn.com/R1b1c7/ > ------------------------------- > To unsubscribe from the list, please send an email to DNA-R1B1C7-request@rootsweb.com with the word 'unsubscribe' without the quotes in the subject and the body of the message