Measures the interaction strength between two FPC components
using the Friedman H-statistic.
Usage
fregre.friedman(model, data, component.j, component.k, n.grid = 20)
Arguments
- model
A fitted fregre.lm or fregre.logistic model.
- data
An fdata object.
- component.j
First component index (1-based).
- component.k
Second component index (1-based).
- n.grid
Grid size for PDP computation (default 20).
Value
A list with component_j, component_k, h_squared,
grid_j, grid_k, and pdp_2d.
Examples
# \donttest{
fd <- fdata(matrix(rnorm(500), nrow = 50), argvals = seq(0, 1, length.out = 10))
y <- rnorm(50)
fit <- fregre.lm(fd, y, ncomp = 3)
result <- fregre.friedman(fit, fd, component.j = 1, component.k = 2)
# }