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