How do I plot Gscatter with x-axis Non Numerical

Hey Guys Im trying to plot Gscatter plot with non numerical x axis .

The code I use for gscatter is

gscatter(credit.age,credit.duration,credit.Risk_class)

But when my variable is non numerical i used the same code but came up with error

gscatter(credit.EU_NonEU,credit.duration,credit.Risk_class)

Im sure its possible to have non numerical x-axis but can I get assistance.

I have attached file im working on

Thanks