k = issparse(X)
issparse(X)
returns 1 if the storage class of X
is sparse and 0 otherwise. Since most of MATLAB's functions work correctly and efficiently with both sparse and full matrices, issparse(X)
is not needed very often.
if issparse(X)
nrm = normest(X);
else
nrm = norm(X);
end
full
,sparse
(c) Copyright 1994 by The MathWorks, Inc.