matlab
perms([3 5 9 13 ])

如果用sas呢

3# xiaosanmao

学习了 ~~~~~
data z;
set y;
call sortn(i,j,k,l,m,n);
if (i=2)&(j=2)&(k=3)&(l=4)&(m=5)&(n=6) then output;
run;
proc sql noprint; create table final as
select * from y
where  exists
(select * from z where y.z=z.z)
;quit;

1# xiaosanmao

8    data _null_;
9    array x(3) (1,2,3);
Here is an example.
SAS function dim=dimension
                      fact=factorial

call routine: call allperm = all permutaion.




10     do i = 1 to fact(dim(x));
11          call allperm(i, of x

);
12          put i 5. +2 x

;
13     end;
14   run;

    1  1 2 3
    2  1 3 2
    3  3 1 2
    4  3 2 1
    5  2 3 1
    6  2 1 3