[R] Column order in stacking/unstacking

2011-03-12 Thread Matthew Carroll
Carroll -- Matthew Carroll Department of Biology (Area 18), University of York, E-mail: mjc...@york.ac.uk [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do

Re: [R] Column order in stacking/unstacking

2011-03-12 Thread Matthew Carroll
, Matthew -Original Message- From: Peter Ehlers [mailto:ehl...@ucalgary.ca] Sent: 12 March 2011 11:09 AM To: Dennis Murphy Cc: Matthew Carroll; r-help@r-project.org Subject: Re: [R] Column order in stacking/unstacking On 2011-03-12 02:01, Dennis Murphy wrote: Hi: It would help if you

[R] Interpreting factor*numeric interaction coefficients

2010-04-12 Thread Matthew Carroll
for that factor level, or is the actual standard error a function of the standard error of var1 and that of the interaction? Any help with this would be much appreciated, Matthew Carroll ### example code resp - rpois(30, 5) cat - factor(rep(c(1:3), 10)) var1 - rnorm(30, 10, 3) mod - glm(resp ~ var1