search for: epithelium

Displaying 1 result from an estimated 1 matches for "epithelium".

2007 Aug 16
4
residual plots for lmer in lme4 package
...f the core. To do this, we used the lmer function to perform a logistic mixed model below. I apologise in advance for the lack of subscripts. logit P(yij=1) = â0 + Ui + â1Patholij where Ui~N(0, óu2), i indexes patient, j indexes measurement, Pathol is an indicator variable (0,1) for benign epithelium versus cancer and yij is the staining indicator (0,1) for each core where yij equals 1 if the core stains positive and 0 otherwise. (I have inserted some example R code at the end of this message) I was wondering if you knew how I could test that the errors Ui are normally distributed in m...