[R] Q: loess-like function that allows more predictors?

[D. R. Evans]

I have a feeling that this may be a stupid question, but here goes anyway:
is there a function that I can use to replace loess but which allows a
larger number of predictors?

(I have a situation in which it would be very convenient to use 5
predictors, which violates the constraint in loess that the number of
predictors be in the range from 1 to 4.)