makebasis: Make orthonomal basis for weight functions

In bdlim: Bayesian Distributed Lag Interaction Models

Make orthonomal basis for weight functions

Description

Make orthonomal basis for weight functions

Usage

makebasis(exposure, df)

Arguments

exposure	Matrix of repeated measures of exposure that is n x T where n is the number of observations and T is the number of time points.
df	Degrees of freedom (including intercept) for the natural spline basis to be used.

Value

A matrix with orthonormal basis expansions of exposure time. The matrix is T x df. These have the span of natural splines with an intercept and df degrees of freedom.

Examples

  B <- makebasis(sbd_bdlim[,paste0("pm25_",1:37)], df=4)

bdlim documentation built on June 11, 2025, 9:07 a.m.