how to group data points in matrix

Matrix A as follows:

A = [
10
20
5
15
35
40
25
30
5
10
];

Based on the following criteria, I want to give code to every array (X) in matrix A:

if 0 < X <= 5 then code = 1
if 5 < X <= 10 then code = 2
if 10 < X <= 15 then code = 3
if 15 < X <= 20 then code = 4
if 20 < X <= 25 then code = 5
if 25 < X <= 30 then code = 6
if 30 < X <= 35 then code = 7
if 30 < X <= 40 then code = 8

results something like:

out = [
10  2
20  4
5  1
15  3
35  7
40  8
25  5
30  6
5  1
10  2
];

Answer 1

[Roger Stafford]

Assuming all numbers in X lie between 0 and 40, and that X is a column vector as indicated in your description, then do:

code = sum(bsxfun(@le,X,5:5:40),2);

Answer 2

[Don Mathis]

out = [A floor(A/5)]

Answer 3

[Andrei Bobrov]

out = [A,discretize(A,0:5:max(A)+1,'IncludedEdge','right')];