How to weight smoothing by arbitrary factor in ggplot2?

Question

The following is a relevant example. I\'m looking at shot efficiency as a function of distance for NBA players. I want to weight the smoothing by the volume of shots taken a

Answer 1

As Ben noted above, if you change the first line to

ggplot(top10,aes(x=FT,y=PPS,size=FGA,color=PPS,weight=FGA))

it works.

Here's a corrected version:

Answer 2

When you want to have multiple smooth lines you could do the weighting in each graph separately:

ggplot(top10,aes(x=FT,y=PPS,size=FGA,color=PPS))
+scale_x_continuous(limits = c(0, 30))
+scale_y_continuous(limits = c(0, 2.2))+geom_point()
+facet_grid(NAME~.,space="free")
+stat_smooth(color="darkblue",size=2, aes(weight= FGA))