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nlme package nonlinear mixed model error when fitting only fixed effects
Brenda Chang
·
Jun 24, 2013
·
r-sig-mixed-models
Dear all, I am getting the error "Error in eval(expr, envir, enclos) : object 'a' not found" when I want to model fixed effects in the *nlme package*: library(nlme) metdata <- read.csv("metdataf.csv", header=TRUE) Model <- function(times...
nlme package nonlinear mixed model errors - fixed effects only
Brenda Chang
·
Jun 25, 2013
·
r-sig-mixed-models
Hi, I am trying to use nlme and lme4 packages to perform a nonlinear mixed effects model, but just with the fixed effects first. (The fixed with random effects models do work). I created a custom model of the form...
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