[R-sig-Geo] Question off topic

2014-02-15 Thread Luis Iván Ortiz Valencia
Sorry for simple question. Is it correct to say that a CAR model is a spatial lag model and a SAR model is a error spatial model.? I revised some literature where these concepts are not changed. Ivan [[alternative HTML version deleted]] ___

Re: [R-sig-Geo] Question off topic

2014-02-15 Thread Roger Bivand
On Sat, 15 Feb 2014, Luis Iván Ortiz Valencia wrote: Sorry for simple question. Is it correct to say that a CAR model is a spatial lag model and a SAR model is a error spatial model.? No, it is not. The spatial lag and spatial error models are both SAR - simultaneous autoregressive, while