Contents
How to match up the results of GLM and glmer?
Here’s a trivial example that matches up the results of glm and glmer (since the random effect is bogus and gets an estimated variance of zero, the fixed effects, weights, etc etc converges to the same value). Note that the weights () accessor returns the prior weights by default (these are all equal to 1 for the example below).
Why does Stata use R as a placeholder?
This is because Stata uses the r (…) as a placeholder for a real value. For another example of this, say that we want to calculate the variance of read from its standard deviation (ignoring the fact that summarize returns the variance in r (Var) ).
How to interpret the output of summary in R?
I’m trying to analyse a dataset in R, but I’m not sure how to interpret the output of summary (glmer (…)) and the documentation isn’t a big help: I understand the GLM behind it, but I can’t see the weights of the independent variables and their error bounds.
Why can’t I match glmer ( family = binomial ) output with manual implementation?
Why can’t I match glmer (family=binomial) output with manual implementation of Gauss-Newton algorithm? I’d like to match the outputs of lmer (really glmer) with a toy binomial example. I’ve read the vignettes and believe I understand what’s going on.
How is the intraclass correlation coefficient ( ICC ) used?
Abstract Objective: Intraclass correlation coefficient (ICC) is a widely used reliability index in test-retest, intrarater, and interrater reliability analyses. This article introduces the basic concept of ICC in the content of reliability analysis.
How many forms of ICC are there in reliability analysis?
This article introduces the basic concept of ICC in the content of reliability analysis. Discussion for researchers: There are 10 forms of ICCs. Because each form involves distinct assumptions in their calculation and will lead to different interpretations, researchers should explicitly specify the ICC form they used in their calculation.
Which is the best practice of reporting ICC?
The best practice of reporting ICC should include software information, “model,” “type,” and “definition” selections. Discussion for readers: When coming across an article that includes ICC, readers should first check whether information about the ICC form has been reported and if an appropriate ICC form was used.