Pick up a value from a vector without replacement.
[k,v]=RandWtRepl(v)
vector of values.
value picked up from v.
RandWtRepl picks up a value k from a vector v. Thereafter k is removed from v.
v=[1 2 3 4 5];//original vector [k,v]=RandWtRepl(v);//application of RandWtRepl v k