This is an example for gpp(1)
type xy
This is the x-axis
This is the y-axis
x vs y1
axes xy
0 0 
1 10
2 30
3 50
4 70
5 90
6 150
7 120
9 100
10 10
plot xy
x vs y3
axes xy
0.0	70.0
1.0	30.0
2.0	50.0
3.0	45.0
4.0	31.0
5.0	15.0
6.0	29.0
7.0	98.0
9.0	52.0
10.0	30.0
12.0	65.0
plot xy
x vs y2
axes y
    50.0
    60.0
    50.0
    55.0
    31.0
    25.0
    29.0
    28.0
    32.0
   40.0
   55.0
plot xy
