[R-sig-Geo] localmoran.sad() in SPDEP

[Danlin Yu]

Dear list members:

    I was using the function localmoran.sad() in SPDEP package. Since I am
interested in the calculation of the star shaped weight list (Vi) of each
location, I set the save.Vi = TRUE. However, after I obtained the
saddlepoing approximated local Moran's I object (say, locmsad), the result
I got from using locmsad[[1]]$Vi is always "NULL". Does anybody have any
idea what I have done wrong? Thanks in advance.

    Sincerely,
    Danlin Yu, Ph.D. Candidate
    Department of Geography
    University of Wisconsin, Milwaukee
    Tel: (414)229-5818
    Fax: (414)229-3981
    Email: danlinyu at uwm.edu