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2008 Nov 19
3
formula in lmer including both nested and crossed effects
Dear all, I was wondering if someone could help me with the specification of a formula including both nested and crossed effects in the same model in lmer. I have one predictor variable, x, and three grouping factors, a,b and c. Factor b is nested in a but is partially crossed with c. Also, I'm interested in an interaction between the crossed effects b and c. I specified a formula in lmer as
2009 Mar 05
1
problem building a package with C code (PR#13572)
Hi, my name is Paula. Im trying to learn how to build an R package in Windows XP using a simple example which includes a C source code. The foo.c file is located in mypkg/src/foo.c. I used the command Rcmd build --force --binary [pkgpath]. The problem is when I install the zip file in R the function foo doesn?t exist. The result a recieved during the building process is copied below. I really