Set my own fixed X-axis value in a grid chart?

[Anonymous]

Hi!

So Im creating this grid-chart and I really want to have the following values in my X-Axis:

- "<10"

- "<20"

- ">20"

I want my graph to look something like the following graph:

The nodes X values does not have the lesser than (<) or bigger than(>) symbols, they are just numbers spanning from 1-30 with no extra characters. Chosing only that field as the x-axis doesnt do it, ofc. I only want those three specified values, containing the symbols (< and >), in the X-axis.

I feel like this should be a simple thing to solve, but I've tried for a while now without any succes...

Sorry about the poor example, hopefully you understand what i'm saying

Any ideas?

Thanks in advance.