[R] i can't read large NETCDF file like CRU

[tony333]

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 

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