On Tue, Apr 3, 2012 at 10:24 PM, AbouEl-Makarim Aboueissa <[email protected]> wrote: > Hi, > > I am able to get the correlations as: > > xxx<-cbind(x1,x2,x3) > yyy<-cbind(y1,y2,y3) > cor(xxx,yyy) > This yields same results as yours. > > But I could not get the p values yet.
What have you tried? What went wrong? Getting the p.values is not a straightforward extension of the approach I illustrated earlier, but it is something you can figure out with a few google searches. If you run into problems I'll be glad to help, but please do make an effort to figure it out on your own. Best, Ista > > thanks > abou > > >>>> Ista Zahn <[email protected]> 4/3/2012 8:05 PM >>> > > Hi, > > For the correlations you just need to understand how matrix indecies work in > R: > > cor(cbind(x1, x2, x3, y1, y2, y3))[4:6, 1:3] > > I'll leave it to you to figure out the p values part. > > Best, > Ista > > On Tue, Apr 3, 2012 at 7:48 PM, AbouEl-Makarim Aboueissa > <[email protected]> wrote: >> Dear All: (revise of the previous message) >> >> I have another silly question. How I can compute the correlations of two >> groups of variables including the p values. For example how to compute the >> correlations of the X's with Y's only of these two groups of variables >> >> x1<-c(12,3,45,32,34,56,7,89) >> x2<-c(6,8,9,6,7,44,33,22) >> x3<-c(45,7,6,89,23,45,67,22) >> >> y1<-c(21,43,77,32,23,45,78,90) >> y2<-c(32,56,78,90,34,23,11,23) >> y3<-c(8,90,34,68,72,17,27,35) >> >> >> This what I need to get: >> >> y1 y2 y3 >> >> x1 corr(x1,y1) corr(x1,y2) corr(x1,y3) >> p value p value p value >> >> x2 corr(x2,y1) corr(x2,y2) corr(x2,y3) >> p value p value p value >> >> x3 corr(x3,y1) corr(x3,y2) corr(x3,y3) >> p value p value p value >> >> >> >> Thank you very much >> abou >> >> >> ========================== >> AbouEl-Makarim Aboueissa, Ph.D. >> Associate Professor of Statistics >> Graduate Program Coordinator >> Department of Mathematics & Statistics >> University of Southern Maine >> 96 Falmouth Street >> P.O. Box 9300 >> Portland, ME 04104-9300 >> USA >> >> >> Tel: (207) 228-8389 >> Fax: (207) 780-5607 >> Email: [email protected] >> [email protected] >> >> Office: 301C Payson Smith >> >> >> [[alternative HTML version deleted]] >> >> _______________________________________________ >> [email protected] mailing list >> https://stat.ethz.ch/mailman/listinfo/r-sig-teaching _______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-sig-teaching
