[R-sig-Geo] to forecast a disease risk using a dynamic model

Hi everyone, I'm recently struggling with exploring a model to forecast the schistosomiasis risk. Let me introduce the data I have first. Parasitological data, including number of infected individuals and population at risk, are available in a province from 1997 to 2010 at the county level (i.e.,

[R-sig-Geo] a problem with creating a neighbours list

Hi everyone, I have a simple problem, which I know will have a simple solution, but I just can't tackle it. I have a shapefile with regions, including an attribute containing a regional id. I used the following R script to create a neighbours list: anhui <- readShapePoly("endemic.shp") zzz<- po

Re: [R-sig-Geo] spatio-temporal simultaneous autoregression model

Thanks, Corey. That's really helpful. By the way, have u got the R codes from Edzer? :) Yi -- View this message in context: http://r-sig-geo.2731867.n2.nabble.com/spatio-temporal-simultaneous-autoregression-model-tp7586871p7586894.html Sent from the R-sig-geo mailing list archive at Nabble.com

Re: [R-sig-Geo] spatio-temporal simultaneous autoregression model

Thanks, Corey, that's really helpful. By the way, do u get the R codes from Edzer? :) Yes, you can choose a zero inflated poisson or negative binomial likelihood. Also, I had asked about a similar question a while back and Edzer replied with this: http://r-sig-geo.2731867.n2.nabble.com/Questio

Re: [R-sig-Geo] spatio-temporal simultaneous autoregression model

Thanks Corey. Yeah, what you mentioned is indeed the problem. However, does INLA can deal with the problem of many "zero" values if a count data model is assumed? >You need to be careful with the incidence data if the Gaussian model isn't appropriate, I assume that many >counties have very low p

Re: [R-sig-Geo] spatio-temporal simultaneous autoregression model

Thanks, Roger. I will try. It's my fault to mistakenly write the spautolm function as a package. what do mean by saying "if your space-time data are balanced". My data is multiple years of prevalence data of schistosomiasis at the county level, combined with data of environmental determinants.

[R-sig-Geo] spatio-temporal simultaneous autoregression model

Hi everyone, It seems that there is no specific R package to implement the space-time SAR model. I happend to find an article entitled "Spatio-temporal regression models for deforestation in the Brazilian Amazon" (literature information: STDM 2011, The International Symposium on Spatial-Temporal A