From rhoskins@home.com Wed Aug 11 06:32:09 1999 Received: from mxu2.u.washington.edu (mxu2.u.washington.edu [140.142.32.9]) by lists.u.washington.edu (8.9.3+UW99.02/8.9.3+UW99.01) with ESMTP id GAA29894 for ; Wed, 11 Aug 1999 06:32:08 -0700 Received: from ha1.rdc1.wa.home.com (siteadm@ha1.rdc1.wa.home.com [24.0.2.66]) by mxu2.u.washington.edu (8.9.3+UW99.02/8.9.3+UW99.06) with ESMTP id GAA14547 for ; Wed, 11 Aug 1999 06:32:08 -0700 Received: from c501552a ([24.5.121.123]) by ha1.rdc1.wa.home.com (Netscape Mail Server v2.02) with SMTP id AAA6748; Wed, 11 Aug 1999 06:32:07 -0700 Message-ID: <00be01bee3fd$baaa3320$7b790518@olmpi1.wa.home.com> From: "Richard E. Hoskins" To: References: Subject: WAPHGIS: Walter's test for spatial pattern Date: Wed, 11 Aug 1999 06:30:50 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2615.200 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200 Alberto: Concerning Walter's test: I don't have such a thing, however I propose this. If people will send me tips on where to find spatial statistical programs relevant for public health or if they will send me their stata,SPLUS, SPSS, SAS code (or anything else) I'll put it on an FTP site for download and make a little catalogue. Of course if you know of someone who has already done this, let me know. If you are looking at clustering, you might check out http://dcp.nci.nih.gov/BB/ of the Biometry Group at the US National Cancer Institute. SaTScan is a spatial/temporal scan statistical program which looks for clusters. The software is free, there is test data, and there is plenty of bibliography to support it. I have tried the software and it works and its easy for nonspecialists to use. You can take the results back into a GIS to link with other data for further analysis or display. The cited papers that have been written using it offer good support on how to interpret the output. It corrects for population density distribution differences and other biases. Richard Hoskins rhoskins@home.com _______________ WAPHGIS listserve _______________ Subscribe to the WA State Public Health & GIS listserve by sending a message to listproc@u.washington.edu with the following in the BODY of the message: subscribe waphgis Your Name (content of the subject line is not important) Check out The NW Center for Public Health Practice at http://healthlinks.washington.edu/nwcphp/ for more details. _______________________________________________ ----- Original Message ----- From: Alberto Zucchi To: Sent: Wednesday, August 11, 1999 5:40 AM Subject: Walter's test for spatial pattern > Dear Listers, has anyone of you some previous experience in building this > test by means of Excel or SPSS syntax? Or in some ad hoc geostatistical or > cluster analysis software? > > Thank you for your kindness > > Alberto Zucchi > Epidemiology Unit > ASL della Provincia di Bergamo > Italy > > .