车包中的散点图（）格式

Question

I want to differs the component of the scatterplot.

• the points
• the regression line (in green)
• the smoothed conditional spread (in red dashed line)
• the non-parametric regression smooth (solid line, red)

The output should be like this

But my code is:

scatterplot(wt ~ mpg, data = mtcars)

and the output is like this

anybody knows how to change the formatting color like the picture 1

Answer 1

You should be able to specify the colors:

scatterplot(wt ~ mpg, data = mtcars, col=c("green3", "red", "black"))

(These are the default colors; see ?scatterplot .)