[R-sig-Geo] hist2d with spatial data frame (slightly off-topic)

2007-03-25 Thread Schmitt Thierry
Hello, still putting some efforts to be a better R/GRASS user!!! Hence this question is from a newbie. I have several spatial dataset : grass raster imported in R ie a morphological classification and other raster data. I have been testing hist2d to plot these variables. I am happy of the resul

[R-sig-Geo] graph plotting from spatialgriddataframe

2007-03-13 Thread Schmitt Thierry
Following my question about comparing vectors and raster data, I would be keen on getting more insights. Here are the fact: I have converted the vector file (interpretation from underwater camera) to be compared with the raster file (morphometric classification from a multibeam sonar survey) u

Re: [R-sig-Geo] comparing raster and vector data with Grass/R

2007-03-07 Thread Schmitt Thierry
I am struggling to overlay spatialLinesDataFrame and SpatialGridDataFrame. The overlay method doesn't allow me to do so. As mentioned by matt, I might have a look at starspan. However, I might be interested to have some solution within the Grass/R interface Thierry

[R-sig-Geo] comparing raster and vector data with Grass/R

2007-03-06 Thread Schmitt Thierry
Hi members of the list I am new to the R community (somewhat to the grass community also). I would like to see if there is any correlation between vector data (polyline connected to a db file) and classes from an analysis on a raster file. Namely I have an underwater DEM (raster 4m resolution)