R help - Mar 2012 - 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

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On Mar 17, 2012, at 10:33 AM, Amen wrote:
> I faced this problem when typing:
>
> temperature <- get.var.ncdf( ex.nc, 'Temperature' )
>
> *unable to allocate a vector of size 2.8 GB*
Read the R-Win-FAQ
>
> 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
-- 

David Winsemius, MD
West Hartford, CT