A random effect formulation for R package nlme is read in as a string of characters from an input file:
ranEff <- "pdCompSymm(~1+Age)" I need to convert 'ranEff' to a formula class. However, as shown below: > as.formula(ranEff) ~1 + Age the "pdCompSymm" is lost in the conversion. Any solutions? Thanks! Gang ______________________________________________ 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.
