[R-sig-Geo] lag.listw function in spdep package

Alí Santacruz amsantac at hotmail.com
Mon Nov 20 16:36:24 CET 2006

Thank you very much!

Although it’s C code, it is not so difficult to understand (with a little 
help from google and R manuals).

Thanks again,

Best regards,

Alí M. Santacruz
M.Sc. Geomatics, Student
National University of Colombia
E-mail: amsantac at unal.edu.co
Bogotá D.C.

>From: "Roger Bivand" <Roger.Bivand at nhh.no>
>To: Alí Santacruz <amsantac at hotmail.com>,<r-sig-geo at stat.math.ethz.ch>
>Subject: RE: [R-sig-Geo] lag.listw function in spdep package
>Date: Sun, 19 Nov 2006 22:44:59 +0100
>This is C code, not(yet) on a public CVS server. The only way to examine 
>the source is to download the source package from CRAN, unpack it, and look 
>in src/lagw.c
>If the macros are not clear enough, you can browse the R source code 
>including the headers at https://svn.r-project.org/R/, and please refer to 
>the relevant sections of the "writing R extensions" manual.
>If you have further questions (and suggestions), please write!
>(I am starting to re-implement at least listw objects as S4 (new-style) 
>classes based on sparse matrices - if anyone on the list is interested in 
>this, please let me know)
>Best wishes
>Roger Bivand, NHH, Helleveien 30, N-5045 Bergen,
>Roger.Bivand at nhh.no
>-----Original Message-----
>From: r-sig-geo-bounces at stat.math.ethz.ch on behalf of Alí Santacruz
>Sent: Sun 19.11.2006 22:34
>To: r-sig-geo at stat.math.ethz.ch
>Subject: [R-sig-Geo] lag.listw function in spdep package
>Dear list members,
>I am studying the SAR models and its implementation in R, step by step. For
>the creation of the spatial lags, I found that function lag.listw calls an
>internal function "lagw".
>I would like to know if it is possible to see the code of "lagw" function 
>R, is there any command to do this?
>I really appreciate your help,
>Alí M. Santacruz
>M.Sc. Geomatics, Student
>National University of Colombia
>E-mail: amsantac at unal.edu.co
>Bogotá D.C.
>MSN Amor: busca tu ½ naranja http://latam.msn.com/amor/
>R-sig-Geo mailing list
>R-sig-Geo at stat.math.ethz.ch

MSN Amor: busca tu ½ naranja http://latam.msn.com/amor/

More information about the R-sig-Geo mailing list