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fm1gen
2011 Apr 18
1
covariance matrix: a erro and simple mixed model question, but id not know answer sorry
...equire("lme4");
fm1Gen <- lmer(yvar ~ X + gen +(1|block), data= dataf) # Question 1: should
I consider X fixed or random
Error in model.frame.default(data = dataf, formula = yvar ~ X + gen + :
variable lengths differ (found for 'gen')
A tried nlme too.
require(nlme)
fm2Gen <- lme(yvar ~ X + gen, random= ~ 1|block, data= dataf)
Error in model.frame.default(formula = ~yvar + X + gen + block, data = list(
:
variable lengths differ (found for 'gen') # similar error
Question 2: How can get I covariance matrix between X1 and X2 either using
lme4 or lmer....