spline_variable: Spline variable numeric target.
Description
Return a spline approximation of data.
Usage
spline_variable(varName, x, y, w = NULL)
Arguments
varName
character, name of variable
x
numeric input (not empty, no NAs).
y
numeric or castable to such (same length as x no NAs), output to match
w
numeric positive, same length as x (weights, can be NULL)