Constructs a grid of values spanning the ranges of the spline covariates
stored in an LMMsolver object.
Arguments
- object
An LMMsolver object.
- grid
A numeric vector specifying the number of grid points for each
spline dimension. Its length must equal the number of spline variables.
Value
A data frame containing all combinations of grid values for the
spline covariates.
Details
For each spline variable, equally spaced values are generated between the
minimum and maximum values of the B-splines. The Cartesian product of these sequences
is returned using expand.grid.
Examples
if (FALSE) { # \dontrun{
## Create a 200 x 300 grid for a two-dimensional spline term
grd <- makeGrid(fit, grid = c(200, 300))
head(grd)
} # }
