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Robert Long

Data Scientist & Statistician:

https://www.linkedin.com/in/roblongleeds/

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Top posts (265) All Questions Answers | Votes Newest

148 Crossed vs nested random effects: how do they differ and how are they specified correctly in lme4? Aug 8 '16
62 What is “restricted maximum likelihood” and when should it be used? Jan 29 '13
29 Sample size calculation for mixed models Jan 27 '13
22 What is an ablation study? And is there a systematic way to perform it? Dec 4 '18
20 Propensity score matching after multiple imputation Sep 16 '12
18 Standard error of random effects in R (lme4) vs Stata (xtmixed) Jan 22 '13
16 Can you please explain Simpson's paradox with equations, instead of contingency tables? Jul 3 '16
13 Dealing with singular fit in mixed models Nov 27 '18
12 Does it make sense for a fixed effect to be nested within a random one, or how to code repeated measures in R (aov and lmer)? Aug 29 '16
11 Can you please explain Simpson's paradox with equations, instead of contingency tables? Jul 5 '16
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