lfgrid() is used to specify evaluation on a grid of points
for locfit.raw(). The structure computes
a bounding box for the data, and divides that into a grid with
specified margins.
Usage
lfgrid(mg=10, ll, ur)
Arguments
mg
Number of grid points along each margin. Can be a single number (which
is applied in each dimension), or a vector specifying a value for
each dimension.
ll
Lower left limits for the grid. Length should be the number
of dimensions of the data provided to locfit.raw().
ur
Upper right limits for the grid. By default, ll and
ur are generated as the bounding box for the data.