Re: [R-sig-Geo] Fwd: spatio temporal variogram

2013-02-14 Thread Jonesmus Wambua
Hi! I was actually able to solve this using the spacetime and gstat packages in R. thanks for your help. regards, Jonesmus. On Wed, Feb 13, 2013 at 4:31 PM, Hodgess, Erin hodge...@uhd.edu wrote: Hi! When you make your shift from the first data set to the second, set it up such the the X1 -

Re: [R-sig-Geo] Need help with spatial data plotting

2013-02-14 Thread Roman Luštrik
I suggest you run the code step by step and examine what happens. By reading help files along the way will bring you closer to understanding the code than you imagined. Here are a few hints I hope you may find helpful. data(eberg) This loads a dataset called `eberg` First, run

[R-sig-Geo] Spatio temporal variogram

2013-02-14 Thread Jonesmus Wambua
Hi, i checked the mannuals and managed to sort out my problem. I just wanted to inquire about something that is not very clear in the specification of the variogram argument. what informs the specification of width and cutoff? am realizing that my results are changing depending on what i put

[R-sig-Geo] Fwd: Spatio temporal variogram

2013-02-14 Thread Jonesmus Wambua
Hi, i checked the mannuals and managed to sort out my problem. I just wanted to inquire about something that is not very clear in the specification of the variogram argument. what informs the specification of width and cutoff? am realizing that my results are changing depending on what i put

Re: [R-sig-Geo] Need help with spatial data plotting

2013-02-14 Thread EPBaron
Roman Luštrik wrote I suggest you run the code step by step and examine what happens. By reading help files along the way will bring you closer to understanding the code than you imagined. Here are a few hints I hope you may find helpful. ___

[R-sig-Geo] Clip a contour with shapefile while using contourplot

2013-02-14 Thread Janesh Devkota
Hi, I have done the interpolation for my data and I was able to create the contours in multipanel with the help of Pascal. Now, I want to clip the contour with the shapefile. I want only the portion of contour to be displayed which falls inside the boundary of the shapefile. The data mydata.csv

Re: [R-sig-Geo] Change z coordinates of SpatialGridDataFrame

2013-02-14 Thread Nathalie Morin
Dear Edzer, I transformed my SpatialGridDataFrame into a SpatiaPointsDataFrame (by the way is there any coercion method such as as.SpatialPointsDataFrame available in sp instead of creating a new one for I have not found it ?). But this does not change my problem: I need the vector of attributes

Re: [R-sig-Geo] apply function to lists of rasters

2013-02-14 Thread Robert J. Hijmans
This mapply problem has now been fixed for the next release of raster (= 2.1-6) https://stat.ethz.ch/pipermail/r-devel/2013-February/065847.html Also thanks to Roman Luštrik for off list suggestions. Robert On Mon, Feb 11, 2013 at 9:14 AM, Robert J. Hijmans r.hijm...@gmail.com wrote: mapply

[R-sig-Geo] measuring overlaps with many shapefiles

2013-02-14 Thread David Epstein
Hello, I am familiar with R and GIS separately, but not working with spatial objects in R. I have a PRIMARY shapefile and many SECONDARY shapefiles. All are polygons and have a string label column for features. I want to generate a nonspatial dataframe of overlap measurements with the following

[R-sig-Geo] how to display a projected map on an rasterVis::layerplot?

2013-02-14 Thread Tom Roche
Please advise me regarding overlay of an LCC-projected map on `raster` data plotted by `rasterVis::layerplot`. What I mean, why I ask: As discussed in detail @ http://stackoverflow.com/questions/14865507/how-to-display-a-projected-map-on-an-rlatticelayerplot (more detail than is feasible for