My regression model is this:

```
R2 <- lm(lnwage ~ educ + exper + hrswk + educ*exper + educ2 + exper2)

```

and I want to estimate: $\frac{\partial ln(wage)}{\partial educ}$ and $\frac{\partial ln(wage)}{\partial exper}$

Is there any way I can do this with R?