similar to: Errors occured

Dear all, I got point data of trees. I was wondering if anybody has experience in searching the neighbors within a specified distance efficiently. X Y Z 99 34 65 98 35 29 98 34 28 99 33 33 98 32 23 99 33 21 99 33 22 99 32 24 99 30 23 ... What I want to do is : searching for the neighbors with a distance R for each tree & the neighbor must have a bigger Z.

Dear all, I'd like to change a point pattern to a grid of cells and use one of the variables as the output. e.g. The point pattern is of a window of (500*500) and several features such as pH, SoilType etc. I like to divide it into a grid with cell size 5*5, and use the mean of the point values falling inside the cell as the output. Is there any package in R working with this? Thanks in

On Sat, 10 Nov 2018, I?aki Ucar wrote: > On Sat, 10 Nov 2018 at 15:17, Roger Bivand <Roger.Bivand at nhh.no> wrote: >> >> On upgrading my F28 to F29, I've found that R-core and a number of R >> packages: >> >> R-evaluate R-glue R-highr R-knitr R-magrittr R-markdown R-mime R-stringi >> R-stringr R-yaml >> >> are installed, although I

On upgrading my F28 to F29, I've found that R-core and a number of R packages: R-evaluate R-glue R-highr R-knitr R-magrittr R-markdown R-mime R-stringi R-stringr R-yaml are installed, although I only ever install R from source and always keep my Rs locally. So I don't use Fedora R rpms, but these were installed without my command. Something in texlive is doing this. A remedy is to

Greetings: I would like to kindly ask for a little help. The rough code is: #________________________________________________________ dat=data.frame(read.delim(file="all.txt", header = TRUE, sep = "\t", quote="\"", dec=".",na.strings = "NA")) nc=read.shape("astae.shp", dbf.data=TRUE, verbose=TRUE) mappolys=Map2poly(nc) submap

Hi, I used .C to call the C functions inside R. Everything works fine on the linux sever. I installed cygwin on my windows xp x64 platform and used rcmd shlib xxx.c to compile. Everything works fine till now and xxx.dll is generated. But when I use dyn.load("xxx.dll") in R, it will open another R window and the original R window becomes "Not responding", nothing loaded in

Hello Roger: Thank you for your email. Some details for the problem. This is the message of the console in R: ------------------ install.packages("rgdal") Installing package into ?/home/aliendist/R/x86_64-redhat-linux-gnu-library/3.1? (as ?lib? is unspecified) probando la URL 'http://cran.rstudio.com/src/contrib/rgdal_0.9-1.tar.gz' Content type 'application/x-gzip'

Hi if I try to import a raster layer which consists only of NULL values from grass by using the readRAST6, I get an error message: > readRAST6("HSericea_seedsDisperse_2007") ERROR: Invalid value for null (integers only) Error in readBinGrid(rtmpfl11, colname = vname[i], proj4string = p4, integer = to_int) : no such file:

Dear all, I have found some serious bugs in the knnFinder package (which supports data structures and algorithms for both exact and approximate nearest neighbor searching in arbitrarily high dimensions) that may trigger segmentation faults. I have fixed them but I had troubles to contact its maintainer Samuel E. Kemp (previously with the University of Glamorgan, UK). Do someone know where I

Greetings to the list, I was trying to estimate spatial error model in R, somehow I got the message below. Would you please help me with it? Many thanks in advance. Error in solve.default(asyvar, tol = tol.solve) : system is computationally singular: reciprocal condition number = 5.6964e-18 Regards, Dong

Hi, i created a graph with heatmap(sma) function: heatmap(dataHeat(x)) and I wish to change the gradation of colors from blue to red, how could i do? Using "heatmap(dataHeat(x), col=c(2,4))" i will use only 2 colors without gradation. Ty so much Andrea

Hello. I'm pretty much new to R and I'm trying to produce some figures. It seems to me, that R has some asynchronous way of plotting figures. When I run this code: #constructs the semivariogram of SC1929 vgm1 <- variogram(SC1929~1,~U+V,puerto.map$att.data) # trying to make new plot dev.set(which=dev.next()) plot(vgm1) title(main="Semivariogram",font.main=4)

Hi, I have no experience with R and I'm finding the manuals a bit obtuse and written as if I already understood R. I'm trying to import a csv file from a floppy and it's not working. The code I'm using is read.table("F:\GEORGIA\species_richness\SR_use.csv", sep=",", header = TRUE, row.names = 1) I'm assuming that this command is case sensitive so

Dear Mr Bivand and all the authors, Glad to recieve your letter, and it seems that you catched the very bug this time! First of all, there isn't any file named "graphics.Ex-rout" in direction "tests/Examples/" but there are "graphics.Ex.R" and "graphics.Ex-Rout.fail" files there, the latter of which looks like a good crue of my problem. So I tared

I was looking at the example on the manual page of plot.window, and noticed that it needs fixing - names(eurodist) should now be labels(eurodist): --- /home/rsb/topics/R-2.2.0/src/library/graphics/man/plot.window.Rd 2005-04-18 12:18:59.000000000 +0200 +++ plot.window.Rd 2005-10-11 21:08:57.000000000 +0200 @@ -48,6 +48,6 @@ ry <- range(y <- -loc[,2]) plot(x, y, type="n",

Hello: I can't install the ' rgdal ' package in R and ' GDAL ' on CentOS 7 (ELGIS repo added). Is there any solution? Thanks -- Manuel Pizarro EBD-CSIC

Dear all, I would like to produce a map with information about the patenting activity in German districts, by coloring districts with different degrees of patenting activity in different colors. I work with the packages maptools, maps and spdep. The map data is read from an external .shp file (+ the corresponding .shx and .dbf files). Plotting a map with the IDs or the patenting indicator itself

Dear List, quantile(x) function allows to obtain specified quantiles of a vector of observations x. Is there an analogous function to compute quantiles in the case one have the vector of the observations x and the correspondent vector f of relative frequencies ? Thank you Paolo Radaelli [[alternative HTML version deleted]]

Dear Dr. Bivand and R-users, I have a 5 by 5 grid, say, location[1:5,1:5], and I want to know the indices of 8 neighbours of each cell. For example, for location[2,2], its neighbour coordinates are [1,1:3], [2,1], [2,3] and [3,1:3]. Sometimes I also need to remove edge effects (torus = TRUE). I have tried "cell2nb" function in your spdep package. Here's my example: > neigh

Hello, I'd like to make a z(x,y) plot for irregularly spaced x,y. What are routines are available in R for this purpose? Thanks, Mark