[R-sig-Geo] Choosing the right nb2listw-style
Breitbach, Nils
breitbach at uni-mainz.de
Sun Aug 22 18:54:02 CEST 2010
Dear Community,
to be able to evaluate the spatial autocorrelation within may data I am forced with the question of how to correctly choose the neighbours for my data. My study plots (points) are not evenly distributed over my study area (approx. 30 x 30 km in size) and also the land-use type is not evenly distributed over the study area and therefore I want to evaluate the spatial autocorrelation for this data set. To finally calculate the Moran's I or plot variograms/correlograms I now need to calculate the neighbourhood relationships of my study plots. For the given characteristic of my data (especially their non-even distribution) I am now somewhat uncertain about the right style (W, B, C, U or S) of the nb2listw() object that suits best for my kind of data.
Can anyone recommend the "right" style for my kind of data?
Thanks for help!
Regards,
Nils
_________________________________________________________
Nils Breitbach, Dipl.-Biol.
Institut für Zoologie, Abt. 5: Ökologie
J.-J.-Becher-Weg 13
Johannes Gutenberg-Universität
55128 Mainz
Germany
phone: +49 6131 39-22718
fax: +49 6131 39-23731
WWW: www.community-ecology.uni-mainz.de/126_ENG_HTML.php
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