Hello all, I am trying to run a random intercept model using lme4. The random
effect is a factor of 29 possibilities, making a model with one random effect
(one level). It is just a linear model. There are 713 observations. However,
when trying to run the model I receive the error "Error: (p <- ncol(X)) ==
ncol(Y) is not TRUE",
a search for which reveals somewhat surprisingly little. Has anyone seen this
before? Note that if I simply change the random effect into a fixed effect and
use lm, the model works perfectly.Thank you!Rory
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