'Error in mv * 1e-05 : non-numeric argument to binary operator' If you receive an error message when trying to allocate some of this data to any of these variables saying something like: To get the variable info: > proj_info = ( ex.nc, 'proj_info', verbose = TRUE ) > x = ( ex.nc, 'x', verbose = TRUE ) > y = ( ex.nc, 'y', verbose = TRUE ) > z = ( ex.nc, 'z', verbose = TRUE ) Let’s say our “proj_info” variable contain the following attributes: In this example, we’ll deal with geographic info assuming our netcdf file contains the following variables: nc file, you can now start pulling data out to different objects. nc file but not the data > print ( ex.nc ) # verbose description of the file > summary ( ex.nc ) # concise summary infoĪssuming you know the names of the variables and attributes contained within the. Next, you want to get your NetCDF file read and to find some summary data about it: > ex.nc = open.ncdf ( your_path :/ your_file.nc ) # contains info on the. The first step is to install the right packages: #If it's the first time: > install.packages ( 'ncdf' ) > install.packages ( 'raster' ) #If you've already got them in your library: > library ( ncdf ) > library ( raster ) I ended up doing this in R (and have done the equivalent now in IDL and Python which I may post soon) and have pieced the process together following “flick throughs” of R package (including raster and netcdf) documentation and stack exchange threads amongst other sources including here as well as here followed by here. HOWEVER, if you’ve never had to deal with them before they are a bit of a headache. They are a great way of storing lots of data and lots of variables and once you understand their structure, they are very efficient ways of distributing data. I’ve never had to deal with netCDF files before.

This definitely passes my “post things that took more than half an hour to work out” as I know Aaron O’Leary was originally basing his posts on.

Working with net cdf files in r