

Dear list,
I wanted to plot residuals from poisson regression model (like the figure 10.5 of  Applied spatial data analysis with R, Bivand et. al.).
My data has response,Tcrash,  and  the covariates,
100MVMT, Alcohol PVMT Alignment 
 and longitude and latitude.
I used their code, but what "TCE" represents in my case, I am unable to figure out.
I will paste a small portion of data and code here, if that helps.
Please, help me, if possible.
wi<-map("county", "wisconsin", fill=TRUE, plot=FALSE)
county.names<-as.character(wi$names)
wi.sp<-map2SpatialPolygons(wi, IDs=county.names, proj4string=CRS("+proj=longlat"))
WI_queen<-poly2nb(wi.sp, queen=TRUE)
WI_queenb<-nb2listw(WI_queen, style="B")
summary(WI_queenb)
WI_queenw<-nb2listw(WI_queen, style="W")
County population Tcrash 100MVMT Alcohol PVMT Alignment Longitude Latitude 
adams 18643 225 225.6 0.093333 0.288889 0.155556 -89.792 43.95184 
ashland 16866 187 174.3 0.058824 0.368984 0.235294 -90.7791 46.46137 
barron 44963 379 495.5 0.055409 0.358839 0.248021 -91.821 45.43696 
Thanks,
Milan
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