Stata makes it very easy to create a scatterplot and regression line using
the graph twoway command. We will illustrate this using the hsb2
data file.
use https://stats.idre.ucla.edu/stat/stata/notes/hsb2
Here we can make a scatterplot of the variables write with read
graph twoway scatter write read
We can likewise show a graph showing the predicted values of write by read
as shown below.
graph twoway lfit write read
Having seen how to make these separately, we can overlay them into one graph as
shown below.
graph twoway (lfit write read) (scatter write read)
And we can even show the fitted value with a confidence interval for the mean as
shown below.
graph twoway (lfitci write read) (scatter write read)
