tve: Time-Varying Effects using P-splines
Description
A B-spline expansion of the input variables to be used for a time-varying effect
in the specification of joint model.
Usage
tve(x, df = NULL, knots = NULL, ord = 3)
Arguments
x
a numeric input variable.
df
integer denoting the degrees of freedom.
knots
a numeric vector of knots.
ord
an integer denoting the order of the spline.
Value
an object of class tve.