Functions added to handle fixed (time-invariant) intercept coefficient for ddhazard
. model.frame.ddformula
always has drop.unused.levels = FALSE
regardless of the input.
# S3 method for ddformula
model.frame(formula, data = NULL, subset = NULL,
na.action = na.fail, xlev = NULL, ...)# S3 method for ddformula
model.matrix(object, data = environment(object),
contrasts.arg = NULL, xlev = NULL, ...)
Same as model.frame.default
Same as model.matrix.default
Same as model.frame.default
Same as model.frame.default
Same as model.frame.default
Unused
Same as model.matrix.default
Same as model.matrix.default