iFit/issparse

 b = issparse(s) : True for sparse matrix iData object

   @iData/issparse function to return true if data set is a vector
   of 's', i.e. that size is 1xN or Nx1

 input:  s: object or array (iData)
 output: b: object or array (iData)
 ex:     b=issparse(a);

 Version: Nov. 27, 2018
 See also iData, iData/sign, iData/isreal, iData/isfinite, iData/isnan,
          iData/isinf, iData/isfloat, iData/isinterger,
          iData/isnumeric, iData/islogical, iData/isscalar,
          iData/isvector, iData/issparse