similar to: spatial subset of ncdf

Can someone help me out with a "small" problem? I've started using netcdf files recently, and I want to extract the grid id and also the coordinates from a HIRHAM netcdf file. I know how to extract a slice of dataset both in space and in time and I also know the area that this file should cover, however I have no idea regarding the reference for both LAT/LON and RLAT/RLON. I tried

Hi when I call the function below in R, i get the error: Object 'pairlist' can't be converted to 'double'. #include <R.h> #include <Rdefines.h> #include <Rmath.h> SEXP CSimPoisson(SEXP lambda, SEXP tgrid, SEXP T2M, SEXP Ni, SEXP NT) { double sign, EVar; double *xlambda, *xtgrid, *xT2M, *xNi, *xNT, *xtau; SEXP tau; int ltgrid =0; int i = 0; int j = 0;

Hi I want to write a C function for the R Code below and call it with .Call: SimPoisson <- function(lambda,tgrid,T2M) #Simulation eines Poissonprozesses { NT <- 0 Ni <- rep(0,length(tgrid)) tau <- 0 sign <- 0 if(lambda != 0) { i=1 j=1 while (1) { EVar <- rexp(1,lambda) sign <- sign + EVar if (sign > T2M) { break } tau[i] <- sign

Hello, I''m trying to pass a record''s ID, latitude, and longitude from javascript variables to a method in my controller. I keep getting an Application Error and I don''t know why. Here''s what I have in my javascript code: <% @rID = capture do %>id<% end %> <% @rLAT = capture do %>place.Point.coordinates[1]<% end %> <% @rLONG =

Dear Colleagues: Through your help an R related installation issue was resolved, but I now have the following usage issue. On any "get.var.ncdf" usage I am seeing: Error: in routine alloca() there is a stack overflow: thread 0, max 535822282KB, used 0KB, request 24B The same error is posted on a file as small as 50MB and as large as 500GB, with ulimit set to unlimited. I

Dear all, 1. How can I compute the intersecting area between 2 polygons ? 2. I have polygons with coordinates in decimal degrees (i.e. 13 deg 30 min = 13.5 decimal degrees). I want to compute their area and get the results in square meters or square kiometers. Can anyone give me a conversion coefficient or a pointer where I can find this information (sorry for this off topic question) ? Thanks

I am trying to translate a given BMDP 8V problem treatment to something approximately equivalent in nlme package (or base R, if sufficient). (Of course, it is not my goal to end there. I want to get access to the advanced flexibility of a more modern treatment.) Here is the problem statement in BMDP control language: /input title='Augenbewegungen'. variables=4.

I would like to open an existing netCDF file and add a variable to it. I am using the ncdf package. This test code gives the idea of what I am trying to do: library(ncdf) print('here we go') print('first, construct netCDF file') t<-dim.def.ncdf('t','',1:1,unlim=T,create_dimvar=F) print('defining first vars')

[Sorry, In case this is repeating a message already sent to the list]. I am trying to move a project to R (base or nlme), for which I have a partial solution in BMDP 8V. Here is the 8V control language: /input title='Augenbewegungen'. variables=4. file='latm.dat'. format='11x,f7.0,f7.0,f12.4,f10.0'. /variables names= llat,rlat,vg,diff. /design

I'm working with the ncdf package, and I'm seeing a behavior which I am unsure whether it is a bug or a feature. I am creating a variable, which I make with the precision of "byte" and also set a missing value, When I put into this variable, all my NA values are put in properly as the missing value. However, when I read it back, I get the missing value rather than NA.

Dear all Im new in R I have a necdf data set that I want to plot : this is my data set [1] "file Tmax.DJF.daily.1981_1999.echama2.nc has 4 dimensions:" [1] "longitude Size: 127" [1] "latitude Size: 110" [1] "ht Size: 1" [1] "t Size: 1680" [1] "------------------------" [1] "file Tmax.DJF.daily.1981_1999.echama2.nc has 1

Hi guys, I need your help!! My goal is to make a csv file from ncdf file. This is the code i've used : > hyo=open.ncdf("C:/CRUTEM3.nc") > hyo [1] "file C:/CRUTEM3.nc has 4 dimensions:" [1] "longitude Size: 72" [1] "latitude Size: 36" [1] "unspecified Size: 1" [1] "t Size: 1916" [1] "------------------------"

Dear All, Can anyone please let me know how exactly ncdf deals with NaN. I am trying to pass in a vector of data that has some NaN in it, into a variable in NetCDF. dimX <- dim.def.ncdf("X","count",(1:6)) dimY <- dim.def.ncdf("Y","count",(1:3)) var1 <-

I am getting theses values when I disply my ncdf file 1e+34 -1e+34 -1e+34 -1e+34 -1e+34 -1e+34 -1e+34 -1e+34 [227,] -1e+34 -1e+34 -1e+34 -1e+34 -1e+34 -1e+34 -1e+34 -1e+34 -1e+34 -1e+34 [228,] -1e+34 -1e+34 -1e+34 -1e+34 -1e+34 -1e+34 -1e+34 -1e+34 -1e+34 -1e+34 [229,] -1e+34 -1e+34 -1e+34 -1e+34 -1e+34 -1e+34 -1e+34 -1e+34 -1e+34 -1e+34 [230,] -1e+34 -1e+34 -1e+34 -1e+34 -1e+34 -1e+34 -1e+34

I got a netCDF file from a climate group and wanted to aggregate the data. The file summary looks like this library(ncdf) nc=open.ncdf("NCEP_prec_1949_58.nc") > nc [1] "file NCEP_prec_1949_58.nc has 4 dimensions:" [1] "Time Size: 14608" [1] "lat Size: 99" [1] "lon Size: 199" [1] "DateStrLen Size: 20" [1]

Dear, I have a set of ascii-grids. For each gridcell I want to count all values that lie between 15 and 6. Therefore I combined the ascii-grids in an array and used result<- apply(temp,2,sum((temp <=15)&(temp > 6)), na.rm=TRUE) But, this doesn`t work. It seems that the combination apply with sum(...) is not working, since the pure apply(object,2,sum) does work. May you help me

Hi, I'm trying to read a subset of a netcdf file into R, but although I'm relatively experienced using R, I'm still new to netCDF files, so this may be a very simple/stupid question! I've included an example of the type of file I'm looking at here. www.met.reading.ac.uk/~swp06hg/ccd1983_01-dk1_20.nc (~7Mb) It's a 2D array of the variable CCD along with its lat and

Hello I am a new user of R . and I ve problem with R and netcdf . I succed installation , I could use all examples . But when I take my netcf it is different . I want to do statistic on this kind of file . 1) first calculate mean . my data is like that through ncdump -h test.nc netcdf test { dimensions: lat = 301 ; lon = 401 ; time = UNLIMITED ; // (80 currently)

Hello, i have observed a Bug in Graph Dump (think). tinc build fine Graph dumps. Inside the dump is a tinc node which no longer tinc used. Connection not inside of dump for this node. This tinc network is used for backbone network in Chemnitz, Germany. We use tinc Versions 1.0.14 and 1.0.13 on PC (Linux) and router (OpenWrt). In the attachment is the graph dump. On this dump is name of node

Dear all, I am attempting to convert 10 NetCDF files into a single NetCDF file, due to the data input requirements of a model I hope to use. I am using the ncdf package, version 1.6. The data are global-scale water values, on a monthly basis for 10 years (ie. 120 months of data in total; at present the data are separated by year, with 12 months of data in each file - mrunoff_1986 through to