similar to: doubt in climate variability analysis in R! - code

Displaying 20 results from an estimated 3000 matches similar to: "doubt in climate variability analysis in R! - code"

2010 Oct 29
2
doubt in climate variability analysis in R!
Hello all, I am trying to use "clim.pact" package for my work, but since this is the beginning for me to use gridded datasets in "R", I am having some trouble. I want to do seasonal analyses like trends, anomalies, variograms, EOF and probably kriging too to downscale my 1 degree gridded data to 0.5.  So, as a first step, I compiled my entire dataset (with 25
2012 Jul 04
3
Please help
Dear All, I am a research student in environment. I have only little programming knowledge. I am currently doing the last project about rainfall impact on ground water quality in an area. It happens that I have to use R to read rainfall data (3 dimension) from ASC file (*.asc), and then write them into one NCDF file (*.nc). I have been working very hard on study R, but I
2012 Mar 17
1
memory, i am getting mad in reading climate data
I faced this problem when typing: temperature <- get.var.ncdf( ex.nc, 'Temperature' ) *unable to allocate a vector of size 2.8 GB* By the way my computer memory is 4G and the original size of the file is 1.4G,netcdf file I don't know what is the problem.Any suggestion please I tried also memory limit(4000) 4000 but didnt solve the problem.any help -- View this message in
2011 Dec 12
2
i can't read large NETCDF file like CRU
i use library(ncdf) to read this file as follow library(ncdf) sst.nc = open.ncdf(title) lonall = get.var.ncdf(sst.nc,'lon') latall = get.var.ncdf(sst.nc,'lat') precip = get.var.ncdf(sst.nc,'pre') close(sst.nc) if i use this method my pc freeze and not respond until i restart it is there -- View this message in context:
2012 Apr 02
2
how to read netcdf file in R
Dear R Users, I am using R 2.14.1 on windows How to read netcdf files in R ? Which packeges do we need to install for this, and what commands are used for reading netcdf files. Thanks, Best Regards, Yogesh Tiwari -- Yogesh K. Tiwari (Dr.rer.nat), Scientist, Centre for Climate Change Research, Indian Institute of Tropical Meteorology, Homi Bhabha Road, Pashan, Pune-411008 INDIA Phone:
2008 Jul 09
1
netCDF to TIFF
Greetings R users! I am working with the ENSEMBLE climate data (10 min resolution daily temperatures images for all of Europe 1950-2006). The data comes packaged in a single netCDF file. I would like to read the data in and export a subset (2002-2006) as geotiffs (one image per day). So far, I can successfully read in the data and view the images within an R display window. However, I have yet to
2011 Sep 07
3
Editing the variables attributes section in the netCDF header of netCDF files created using the package ncdf.
Hi, I am using the package ncdf to create netCDF files and I want to mimic the the header of an exiting netCDF file created outside of R. Below is what the existing header looks like (part of it that is different): netcdf ccd1984_05_08 { dimensions: lat = 1974 ; lon = 1894 ; time = UNLIMITED ; // (1 currently) variables: int time(time) ;
2011 Sep 12
1
Problem in put.var.ncdf
Dear all, I have a problem in writing a variable to a NetCDF-File. My code works pretty well until the step put.var.ncdf(): # Get variables #--------------------- data1 <- open.ncdf("PREC_me_03-1500.nc") prec1 <- get.var.ncdf(data1,"PRECT") dim.time <- get.var.ncdf(data1,"time2") close.ncdf(data1) # Calculation #--------------------- spi24.me <-
2011 Jul 14
1
Error: "non-numeric argument to binary operator"
Hi I am posting in the topic related to the "non-numeric argument to binary operator" as I got similar problem while running the netcdf code. I have attached the file with this post. It is a climate data from NOAA site. The code follows as: library(survival) library(RNetCDF) library(ncdf) setwd("c:/projects/netcdfcsfiles") Conn42 =
2011 Jul 07
1
Select element out of several ncdf variables
Hi there I'm working with ncdf data. I have different dataset for 4 runs, 4 seasons and 3 timeslices (48 datasets in total). The datasets have the following dimensions: 96 longitudes, 48 latitudes and 30 time steps. To read all of them in, I wrote the following loop: runs <- c("03","04","05","06") years <- c(1851,1961,2061) seasons <-
2010 Sep 23
1
NetCDF file: adding a variable
I am trying to create a NetCDF file with bathymetry (a matrix) and then to add a grid type (an integer) as variables. This is the relevant part of the code: library(ncdf) wfile="my_file.nc" msv=-10 grdtp=2 # Dimensions d1=dim.def.ncdf("lon","degrees",as.double(lon)) d2=dim.def.ncdf("lat","degrees",as.double(lat)) # Variables
2004 Nov 12
1
Problems installing ncdf package into R
Hello Can someone please look into the problem with installing ncdf package into R. I get this message when I try install it: > install.packages("ncdf") trying URL `http://cran.r-project.org/bin/windows/contrib/2.0/PACKAGES' Content type `text/plain; charset=iso-8859-1' length 22827 bytes opened URL downloaded 22Kb Warning message: No package "ncdf" on CRAN. in:
2016 Apr 22
2
Unexpected values obtained when reading in data using ncdf and ncdf4
Dear R Users, I am encountering a problem when reading nc files into R using the ncdf and ncdf4 libraries. The nc files are too large to attach an example (but if someone is interested in helping out I could send a file privately via an online drive), but the code is basic: for(i in 1:length(thesenames[,1])){ data <- nc_open(paste(INDIR, thesenames[i,c("wholename")],
2011 Sep 24
2
ncdf - install error
Dear all, I'm having issues with the installation of the ncdf package. It returns a non-zero exit status. Can anyone suggest what I should do next? FYI, I do not have problems installing other packages. Thanks. Muhammad * installing *source* package ?ncdf? ... checking for nc-config... /usr/local/bin/nc-config configure: creating ./config.status config.status: creating src/Makevars **
2005 Apr 27
1
ncdf with opendap/dods support
Aloha, I just made some quick hacks on the configure script with the 'ncdf' package to make it link with the opendap/dods libraries (opendap.org) rather than the netcdf api library. Basically, this allows a user to interact in R with a remotely served dataset as if it were a netcdf file on the local filesystem (read-only). Functionality with local files should continue to work as
2017 Jun 28
4
Extraneous full stop in csv read
I ran into a puzzling minor behaviour I would like to understand. Reading in a csv file, I find an extraneous "." after a column header, "in" [short for "inches"] thus, "in.". Is this due to "in" being reserved? I initially blamed this on RStudio or to processing the data through LibreCalc. However, the same result occurs in a console R session.
2012 Jan 05
1
[ncdf] programmatically copying a netCDF file
How to programmatically (i.e., without no or minimal handcoding) copy a netCDF file? (Without calling > system("cp whatever wherever") :-) Why I ask: I need to "do surgery" on a large netCDF file (technically an I/O API file which uses netCDF). My group believes a data-assimilation error caused a data variable to be corrupted in a certain way, so I'm going to
2011 Jan 12
2
RNetCDF: retrieving variable names and units
Dear List, does anybody has experience with the RNetCDF package? I manage to open a connection and copy data from a ncdf file but would need a way to automatically retrieve variable names (ideally all of them from one file) and units from the file. Any ideas? Jannis
2013 Mar 07
1
install error - Netcdf library (linux)
Hi All, i'm on a debian linux 64bit, i'm tying to install the netcdf intraface, i tried both ncdf and ncdf4 but trying to build i received the error : (i have necdf installed on my machine and it is able to fiund it .. no missed .h) epy at epinux:~$ sudo R CMD INSTALL --configure-args="-with-netcdf_incdir=/usr/include -with-netcdf_libdir=/usr/lib" ncdf4_1.8.tar.gz *
2016 Apr 22
0
Unexpected values obtained when reading in data using ncdf and ncdf4
On Fri, Apr 22, 2016 at 1:32 AM, Louise Mair <louise.mair at slu.se> wrote: > Dear R Users, > > I am encountering a problem when reading nc files into R using the ncdf > and ncdf4 libraries. The nc files are too large to attach an example (but > if someone is interested in helping out I could send a file privately via > an online drive), but the code is basic: > ?[...]?