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: 0091-99 2273 9513 (Cell)
: 0091-20-25904452 (O)
Fax : 0091-20-258 93 825
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Yogesh, The package I most commonly use for reading and working with netcdfs is called ncdf. It has a collection of commands for working with netcdf files, but the open command is open.ncdf in this package Adrienne -- Adrienne Wootten Graduate Research Assistant State Climate Office of North Carolina Department of Marine, Earth and Atmospheric Sciences North Carolina State University On Mon, Apr 2, 2012 at 4:54 AM, Yogesh Tiwari <yogesh.mpi at googlemail.com> wrote:> 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: 0091-99 2273 9513 (Cell) > ? ? ? ? : 0091-20-25904452 (O) > Fax ? ?: 0091-20-258 93 825 > > ? ? ? ?[[alternative HTML version deleted]] > > ______________________________________________ > R-help at r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code.
On Mon, Apr 2, 2012 at 1:54 AM, Yogesh Tiwari <yogesh.mpi at googlemail.com> wrote:> 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.Typical code would look something like this: library('ncdf'') filename <- 'data.nc' varname <- 'Temperature' ncid <- open.ncdf( filename ) data <- get.var.ncdf( ncid, varname ) If you need to see what variables the file contains to get the variable names, just do a "print(ncid)" after you open it. If it is a very large file, too large for the data to fit in memory all at once, you can step through and read each timestep in the file separately using the "start=" and "count=" arguments to the get.var.ncdf() call. Regards, --Dave -- David W. Pierce Division of Climate, Atmospheric Science, and Physical Oceanography Scripps Institution of Oceanography, La Jolla, California, USA (858) 534-8276 (voice) ?/ ?(858) 534-8561 (fax) ? ?dpierce at ucsd.edu