[Openspace] k-nearest criterion

[Julia Koschinsky]

Tzatzoglou,

Regarding your k-nearest neighbor question, you would have 
to edit your k-nearest neighbor matrix to make it symmetric. 
Manually editing your matrix can be extremely time-consuming 
(especially if you have more than 100 observations) and it 
is easy to make errors in the process.

About your 2nd question: The easiest way to create maps 
using multiple layers is to choose the "save results" option 
in GeoDa (right-click on map), which will add fields to your 
table (e.g., for smoothed or LISA maps). You can export 
these fields as part of a new shapefile and open them in a 
regular GIS. Then you can map the GeoDa-generated fields in 
addition to other layers.

Julia
---- Original message ----
>Date: Tue, 29 Jun 2004 11:26:45 0300
>From: "Tzatzoglou Costas" <ctzatzo at geo.aegean.gr>  
>Subject: [Openspace] k-nearest criterion  
>To: <openspace at agec221.agecon.uiuc.edu>
>
>   Link: File-List
>
>   Hello
>
>   I would like to ask two questions about the use of
>   Geoda
>
>   1: I have to use k-nearest criterion , but it's not
>   possible to make regression analysis using this kind
>   of criterion. Is there any possible way that I can
>   outweigh this?
>
>   2: In Geoda I have the possibility to add layers in
>   the same view, but I can only use the top layer for
>   my analysis. In addition, the other layers can not
>   be view properly, because they overlap. How can I
>   produce maps using multiple layers?
>
>   Thank you