value assigned to the variable might be unused.

what's wrong with the variable "v".Please help.

function [s,m,b] = non_decr(v)
 v = [x,y,z];
if x<=y && y<=z
   [s,m,b]=deal(x,y,z);
elseif x<=z && z<=y
   [s,m,b]=deal(x,z,y);
elseif y<=x &&x<=z
    [s,m,b]=deal(y,x,z);
elseif y<=z && z<=x
    [s,m,b]=deal(y,z,x);
elseif z<=y &&y<=x
    [s,m,b] = deal(z,y,x);
else 
    [s,m,b] = deal(z,x,y);
end
end

Answer 1

[Birdman]

Change line

   v = [x,y,z];

to

x=v(1);y=v(2);z=v(3);

[jakaria babar]

Thank you very much.