This page
contains links for material from the lectures
Simon Wood
has made two R packages to be used with his text
mgcv
gamair
Go to
R-project and choose one of the mirror sites.
On this go to packages and find the two packages.
Sept 8,
2014 : R script LinReg1.R
Q R
decomposition
QR-1.R a
simple example using the R function qr and related
functions
September 8
or 10, 2014 : hubble
data and simple data frame LinReg1.R
QR-2.R further QR details programmed in an
inefficient manner.
Sept 24,
2014 MASS-ch8-7.R
Sept 24,
2014 a1-2014.pdf Sept 30, Rephrased question 1 as in one part
we need vectors of the same norm to follow Wood’s discussion of Householder
matrices.
Nonparametric
regression Chapters 3 and 4
Splines
Wood-spline.R cubic splines ; we
see this is just linear regression with a particular basis
B-spline1.R
B-splines
Wood also
gives p-splines (truncated and shifted pure cubics)
Smoothing splines and penalized regression
Wood-Ch3.R example of smoothing spline using the function rk in
Wood Chapter 3.2
gam
fitting example Cairo temperature Cairo.R
loess and lowess example using the Cairo data cairo-loess.R
Nov 24,
2014 : SomeKernelSmoothNotes.pdf
and some
pages from Ruppert et al 2013 Ruppert-Wand-Carroll-KernelSmoothing.pdf