[Openspace] Re: Openspace Digest, Vol 65, Issue 3
mhwang4 at gmail.com
Tue Sep 9 12:48:18 CDT 2008
I am not sure about the function for making KNN weights symmetric,
however for reading GAL/GWT files in R you can use spdep R library.
And you can read the following tutorial to learn how to get your work done.
from Myunghwa Hwang
On Tue, Sep 9, 2008 at 9:59 AM, <openspace-request at sal.uiuc.edu> wrote:
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> 1. Using KNN weights (Pratik Mhatre)
> ---------- Forwarded message ----------
> From: "Pratik Mhatre" <pcmhatre at tamu.edu>
> To: openspace at sal.uiuc.edu
> Date: Mon, 8 Sep 2008 16:25:19 -0500
> Subject: [Openspace] Using KNN weights
> I read about the problem that KNN weights can pose in GeoDa. The FAQ on the
> website suggests using R to make the weights symmetric. I've downloaded and
> installed R but am unable to read in the .GWT file that GeoDa creates. Can
> anyone describe the exact process after creating the weights file in GeoDA?
> How do I go about reading in the weights file in R, making it symmetric,
> then exporting it back to .GAL or GWT format? Thanks in advance.
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