Mksplines Graphic

Hey guys,

I'm currently working on a Data Mining analysis and need some help regarding the graphics.
I analyse the correlation between Complaints and the customer churn rate.
Thats why I mksplined the variable "anz_beschwerden_365" in 4 groups:

mkspline beschw1 1 beschw2 2 beschw3 4 beschw4 = anz_beschwerden_365

How do I graph them? I want to see the curve with the different slopes between the knots.

Any ideas?

Best regards from Germany,

Nils