All Questions
3 questions
4
votes
1
answer
171
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minimum amount of prior to get a mixed-model to converge (in R)
This may be a simple/naive question, but I have a non-converging lmer() model due to singularity of its random covariance matrix.
I was wondering what is a possible ...
- 4,056
2
votes
0
answers
130
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How to model a multiplicative effect of a parameter
I am having difficulty in fitting a model on data. Basically, I have data about the evaluation of phenotypic property (i.e. hard) of 65 palm trees by 5 judges. As an evaluation scheme, each judge ...
- 21
1
vote
0
answers
47
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Variance of random effects in lmer output
Consider this simple simulated dataset (all groups are normally distributed with sd=1) made up by 4 level 1 groups (lv1) and 2 level 2 groups. The mean of the 4 distribution is 5, 15, 5 and 15 ...
- 133