Thanks! I must confess I am just a beginner, but I followed your suggestion and did 'm <- lm(as.matrix(snp[, -1]) ~ lat, data = snp) ' and it worked perfectly. I would like to understand what is being done here. as.matrix I understand makes my data frame be a matrix, but I don't understand the part snp[,-1]. I think I am saying use all rows of... but I don't understand the -1, does that mean, all columns but column 1?
I really appreciate the help! It was really really valuable. A related question is, what is m? If I do is.object(m) I get true. so I guess it is an object. I now need to use each of the fitted models for more things, such as calculate anova, etc... How do I do that? When I do this column by column I just do anova(m), but it does not seem to work now... Thanks! AG -- View this message in context: http://r.789695.n4.nabble.com/automating-regression-or-correlations-for-many-variables-tp3426091p3426519.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
