Map an array yo another one

I have an array like: A=[3,5,6,10] and I need to map it to another one like: B=[1,2,3,4] so instead of returning A, I can return B. how can I do this?

[Guillaume]

The question is really not clear. What does map mean? How do you go from [3 5 6 10] to [1 2 3 4]? What is the rule?

[KL]

B=A ?

Answer 1

[Andrei Bobrov]

A=[3,5,6,10];
B=[1,2,3,4];
C = randsrc(8,5,B);

ii = discretize(C,B);
out = A(ii);

[Andrei Bobrov]

fixed!

Answer 2

[Stephen23]

Use interp1:

>> A = [3,5,6,10];
>> B = [1,2,3,4];
>> interp1(A,B,[5,10])
ans =
   2   4