MATLAB: How to index value falling particular interval

indexindexing

I have sequence of numbers [2 2 5 11 15 11 0 7 8 21 27 21 0 1 22 24 24 3 3 13 1 11 13] with min 0 and max 27 value. I want to divide values in intervals of size 4 i.e. 0-3,4-7,8-11,,,,24-27 and want to index particular value in which it falls. i.e. here 7 intervals. 2 falls in 1st interval so index as 1, 5 falls in 2nd interval so index as 2, so as follows
2 2 5 11 15 11 0 7 8....
1 1 2 3  4  3  1 2 3....
how to do it.

Best Answer

Use discretize:
v  = [2 2 5 11 15 11 0 7 8 21 27 21 0 1 22 24 24 3 3 13 1 11 13];
bins = min(v):4:max(v)+4;
[v; discretize(v, bins)]
Related Question