MATLAB: Split the data into group then graph them

Question

I have a big matrix as

[ENPV, SD, R];

I would like to split R into 3 groups based on criteria as

Group 1 when R is between [0 10]

Group 2 when R is between [11 20]

Group 3 when R is between [21 30]

Then, I want to draw them.

I tried something as below but did not work

[counting,group]    = hist(R,3);
G                   = findgroups(R,group)
figure
gscatter(SD, ENPV, G)

Anyway to help wtih this please.

Answer 1

If you have R2015a or later, the discretize funciton may do what you want:

group   = discretize(R, [0 10 20 30]);