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function C = sprandsym (arg1, arg2)
%SPRANDSYM random symmetric matrix.
% C = sprandsym (A) is a symmetric random matrix. Its lower triangle and
% diagonal have the same pattern as tril (A). The values of C have a
% normal distribution. A must be square. This usage is the same as
% C = GrB.random (A, 'symmetric', 'normal').
%
% C = sprandsym (n,d) is an n-by-n symmetric random matrix with about n*n*d
% entries, with a normal distribution. If d == inf, C is full. To use
% this function instead of the built-in sprandsym, use
% C = sprandsym (n,GrB(d)), or C = GrB.random (n,d,'symmetric','normal').
%
% For additional options, see GrB.random.
% The C = sprandsym (n,d,rc) syntax is not supported.
% C is returned as a double GraphBLAS matrix.
%
% Example:
%
% A = sprand (1000, 1000, 0.5) ;
% G = GrB (A) ;
% C0 = sprandsym (A) ; % the built-in sprandsym
% C1 = sprandsym (G) ; % GrB/sprandsym
%
% See also GrB/sprand, GrB/sprandn, GrB.random.
% SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
% SPDX-License-Identifier: Apache-2.0
if (nargin == 1)
% C = sprandsym (G)
G = arg1.opaque ;
C = GrB (gb_random (G, 'symmetric', 'normal')) ;
else
% C = sprandsym (n, d)
n = gb_get_scalar (arg1) ;
d = gb_get_scalar (arg2) ;
C = GrB (gb_random (n, d, 'symmetric', 'normal')) ;
end
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