No.

Parameter of surface roughness

Equation of trend line

Coefficient of determination R2

1

Ra

y = 5E−08x2 + 6E−05x + 0.069

0.995

2

Rz

y = 1E−06x2 + 1.261

0.991

3

Rt

y = 4E−07x2 + 0.380

0.983