LLmat {sharpData} | R Documentation |
This computes the smoother matrix for the monotonic local linear sharpening problem.
LLmat(xgrid, x, h, kernel)
xgrid |
numeric vector |
x |
numeric explanatory vector |
h |
numeric bandwidth |
kernel |
character constant |
a list containing the A matrix and the number of rows in A.
W.J. Braun