search for: batch_ij

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2004 Nov 16
1
lme, two random effects, poisson distribution
..._9, slugs_10} Batch_4 = {slugs_11} . . . Batch_12 = {slugs_24, slugs_25} Notice that there are 12 batches, and the number of slugs in each batch differ, from 1 slug to 4 slugs. I consider batch to be another random-effect on intercept. Thus I fit model: ************pumps_tij = state_t + slugs_i + batch_ij + error_tij Slugs, batch and error are normally distributed, but slugs and batch are not nested factors. I had fit following (however I'm not sure if that is right): slugs.lmedataB <- groupedData(pumps ~ state | slugs/batch, data=as.data.frame(data.slugs)) csB <- corAR1(form= ~ x|slugs...