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Hi, is there a function in R to convert data read with read.shape and which is originally in UTM coordinates into longitude / latitude coordinates? I found the convUL() function from the PBSmapping package but I have no idea how I could apply that to the read.shape object. Many thanks, Werner __________________________________________________ Do sragenden Schutz gegen Massenmails.

Dear all: I have a shapefile in UTM coordinate system and I would like to transform it to Lat/Log coordinates (WSG84). The package PBSmapping contains function convUL to transform between the two coordinate systems when data is in the form of a data frame with attributes specifying the coordinate system. However, when shapefiles are imported using function read.shape (package maptools), a list

...h Id. Want I want to get as a value is a data.frame where each row corresponds to one ID and has as many columns as different descriptions. I have used a very convoluted step, but I'm very convinced there is an easier way to do this. Basically, I used the reshape function, but even in this convulated way there is a step that I can't solve. I used a "fake" timevar using the table function. df <- data.frame(id=c(rep('IDa',3), rep('IDb', 5), rep('IDc', 2), rep('IDd',5)), let=letters[1:5]) #add Freq to each id xFreqdf <- mer...

Hi R-Users, I have plotted a region whose polygon coordinates are given in shp format ED50 UTM (zone=30) ) using "readShapePoly" in library(maptools). Now I need to plot a set of points in that region (my.dataframe, with X and Y geographic coordinates), which have been read using GPS in Longitud-Latitud form (using WGS84 system), so I first need to convert these Longitud-Latitud data

Hi R helpers, I tried to convert a list of LatLong coordinates (in DD format) into UTM zone 11 NAD 27. I first tried this from PBSmapping: library(PBSmapping) LatLong<-cbind(c(56.85359, 56.85478),c(-118.4109, -118.4035)) colnames(LatLong)<-c("X","Y") attr(LatLong, "projection") <- "UTM" attr(LatLong, "zone") <- 11