1function s = GB_sparsity (d)
2%s = GB_sparsity (d) returns a string describing the sparsity
3
4if (d == 1)
5    s = 'hypersparse' ;
6elseif (d == 2)
7    s = 'sparse' ;
8elseif (d == 4)
9    s = 'bitmap' ;
10elseif (d == 8)
11    s = 'full' ;
12end
13
14