Question about zero-inflated Poisson glmer
On Tue, 28 Jun 2016, Philipp Singer wrote:
You can find a sample of the data here: https://www.dropbox.com/s/kqqxmc3wp225lug/r_sample.csv.gz?dl=1 You can think of the setting as popularity of items "y" inside stores "id" explained by two features "a" and "b" whereas "a" is more of a control covariate and I am interested in whether "b" has a positive impact.
Probably not very helpful (what a horrible distribution y has), but library(ordinal) x$cats <- cut(x$y, c(-1,0,10,100,1000,20000)) c1 <- clmm2(cats ~ a + (1|id), data=x) c2 <- clmm2(cats ~ a + b + (1|id), data=x) does run... Cheers, David Duffy.