how to load big netcdf file?

Hello

I was wondering why Matlab could not able to load 3GB file to the work space. I have Netacdf file format with 3GB an di tried to load it to the work space using ncread as shown below. but it results in error message.

Does any has better ideas for this error.

P = ncread('v2p0chirps_25.nc','precip');

Error using netcdflib

Requested 1440x400x14853 (31.9GB) array

exceeds maximum array size preference.

Creation of arrays greater than this

limit may take a long time and cause

MATLAB to become unresponsive. See

array size limit or preference panel

for more information.

Error in netcdf.getVar (line 140)

data =

netcdflib(funcstr,ncid,varid,varargin{:});

Error in

internal.matlab.imagesci.nc/read (line

605)

data =

netcdf.getVar(gid,

varid);

Error in ncread (line 66)

vardata = ncObj.read(varName,

varargin{:});

Answer 1

[Benjamin Thompson]

The ncread function accepts additional arguments for a starting position and number of elements to read. See the help on ncread. Or you could increase array size limit in the MATLAB preferences as your error suggests. Looks like MATLAB wants a 31.9GB array though so that might be hard to do.