Re: [R-sig-Geo] add, delete columns in spatial data frame data slot before spRbind

2008-08-19 Thread Roger Bivand
On Tue, 19 Aug 2008, Murray Richardson wrote: Hello again users, I'm having trouble figuring out how to format the data slot in spatial SpatialPolygonsDataFrames. I need to use spRbind to combine polygons from different shapefiles but encounter the problem of having different numbers of col

[R-sig-Geo] add, delete columns in spatial data frame data slot before spRbind

2008-08-19 Thread Murray Richardson
Hello again users, I'm having trouble figuring out how to format the data slot in spatial SpatialPolygonsDataFrames. I need to use spRbind to combine polygons from different shapefiles but encounter the problem of having different numbers of columns, and also non-unique IDs. If the polygons

[R-sig-Geo] a simple correlogram

2008-08-19 Thread Christian Salas
hi there, Sorry if this is too simple and silly. I just want to produce a correlogram using the following example, x and y coord. are measured in m (i know that does not matter now, but keep reading). I already have checked the sp.correlogram(), correlog(), and similar functions in different

[R-sig-Geo] Limited dependent variable in R

2008-08-19 Thread Hung-Hao Chang
Dear all: I am new in the R package for spatial analysis. I wonder if there is any command available in R to estimate spatial regression models with dependent variable (such as Tobit, Probit type model). Many thanks. Howard [[alternative HTML version deleted]]

Re: [R-sig-Geo] variogram question

2008-08-19 Thread Wesley Roberts
Dear Paul and the rest of the users who replied to my question, Firstly many thanks for all your input, reading your emails this morning improved my mood exponentially. I have installed automap and am getting to know the program nicely, it is so easy to run it is almost unfair. I do have one q

Re: [R-sig-Geo] sm.sphere

2008-08-19 Thread Roger Bivand
On Mon, 18 Aug 2008, Galkowski, Jan wrote: In the sm package, the Description for sm.sphere promises "The angle of view may be altered.", and the Value writeup says "... a list containing the value of the smoothing parameter and the rotation angles of the displayed plot." Yet, if I invoke this