[R-sig-Geo] Doubt about the local moran - spdep

2010-06-10 Thread Everton Emanuel
Dear all, I am doing spatial analysis using the r-code "local moran" from the library spdep. After employing some tests it comes to me that you can use 3 kinds of alternative tests in the code, namely: "one of greater", "two.sided" e "less", each giving distinct results for the p-values statistic.

[R-sig-Geo] How to delete a single polygon in a shape file

2010-05-07 Thread Everton Emanuel
Dear all, I have a small problem, and hope to get some help from you guys. I have a shape file of Brazilian micro regions; in order to estimate spatial correlation I need to construct a weight scheme of this shape. However, the shape contains "islands" that unables its construction. I want to kno

[R-sig-Geo] How to diplasy a compass rose on a map

2010-02-03 Thread Everton Emanuel
Dear all, I want to display a "compass rose" on a map, but I have no idea how to do that. Do you know how can I display a compass rose on a map? Thank you all, Everton. -- PhD-Student at the Centro de Desenvolvimento e Planejamento Regional-UFMG. Doutorando do Centro de Desenvolvimento e Planej

[R-sig-Geo] How to put name in map?

2010-02-01 Thread Everton Emanuel
Dear all, I have a small problem concerning labelling regions and areas in R. I want to label a single polygon in a map. I succeed labelling to whole map, but when I try a single polygon it did not work. This is the command that I used: #for the whole area it works# plot(map) centroids<-coordina

Re: [R-sig-Geo] Question concerning the Kulldorff's method

2009-08-20 Thread Everton Emanuel
verton. On Thu, Aug 20, 2009 at 12:01 PM, Everton Emanuel wrote: > Dear all, > > I am doing some spatial analysis using the library DCluster. In order to > identify possible "cluster locations" I apply the Kulldorff's method. I am > dealing with some technical pro

[R-sig-Geo] Question concerning the Kulldorff's method

2009-08-20 Thread Everton Emanuel
Dear all, I am doing some spatial analysis using the library DCluster. In order to identify possible "cluster locations" I apply the Kulldorff's method. I am dealing with some technical problems, however. Regarding the rotine that identifies the possible cluster locations, I do not know which val

[R-sig-Geo] How to deal with missing values in geospatial data

2009-04-13 Thread Everton Emanuel
Dear all, I am doing some spatial analysis for the Federal Unities of Brazil. At this point I am dealing with some problems concerning "missing values" in the spatial data set. My question is: How can I create maps if I have missing values in some spatial units? Can I solve this problem by inpu