Return a spline approximation of the change in log odds.

spline_variablec(varName, x, y, w = NULL)

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) |

spline y prediction