Dear list, I am trying to explore spatial patterns in some density data that I have (attached txt- RDdensityChange). I have successfully carried out Moran's I correlogram on the data using the library (pgirmess). I now wish to carry out an anisotropic correlogram, I have looked at the ncf and ape packages but I am failing to get the out put I want: I would like to find the direction in which the change is occurring, how significant it is etc. To do this I believe I need to calculate the distance between points (municipXY.txt attached is the latitude longitude location of my data points) when they are projected onto a perpendicular line (of angle 0 ie. north line). use the distances calculated to to run a new morans I. And then repeat for a new angle (eg 45 degrees (North east), 90 degrees (east) etc). Unfortunately I don't know how to do this, I am very new to spatial analysis and R. I would greatly appreciate any help on this matter. Thank you for your time, S. -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://stat.ethz.ch/pipermail/r-sig-geo/attachments/20110713/88cf001d/attachment.html> -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: RDdensityChange.txt URL: <https://stat.ethz.ch/pipermail/r-sig-geo/attachments/20110713/88cf001d/attachment.txt> -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: municipXY.txt URL: <https://stat.ethz.ch/pipermail/r-sig-geo/attachments/20110713/88cf001d/attachment-0001.txt>
Spatial Correlogram
2 messages · Sadz A, Matevz Pavlic
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