ndims.m

张量分析工具

function n = ndims(t)
%NDIMS Number of dimensions of a sparse tensor.
%
%   NDIMS(T) returns the number of dimensions of sparse tensor T.  
%
%   Examples:
%   T = sptenrand([3 2 2],5); 
%   ndims(T) %<-- should return 3
%
%   See also SPTENSOR.
%
%MATLAB Tensor Toolbox.
%Copyright 2007, Sandia Corporation. 

% This is the MATLAB Tensor Toolbox by Brett Bader and Tamara Kolda. 
% http://csmr.ca.sandia.gov/~tgkolda/TensorToolbox.
% Copyright (2007) Sandia Corporation. Under the terms of Contract
% DE-AC04-94AL85000, there is a non-exclusive license for use of this
% work by or on behalf of the U.S. Government. Export of this data may
% require a license from the United States Government.
% The full license terms can be found in tensor_toolbox/LICENSE.txt
% $Id: ndims.m,v 1.6 2007/01/10 01:27:31 bwbader Exp $

n = size(t.size,2);