Least squares modelling (2014)

Class date(s):	29 January 2014 to 13 February 2014
(PDF)	Course slides
Download video: Link (plays in Google Chrome) [119M]
Download video: Link (plays in Google Chrome) [304 M]
Download video: Link (plays in Google Chrome) [291 M]

Course notes and slides

• Course textbook (print chapter 4)
• Slides for class

Date	Class number	Video and audio files		Other materials	Reading (PID)	Slides
29 January	04C	Video (119 M)	Audio (18 M)	None	Chapter 4	Slides for class
30 January	04D	Video (304 M)	Audio (42 M)	See the source code below
03 February	05A	Video (291 M)	Audio (41 M)	See the source code below

Software source code

Take a look at the software tutorial, particularly steps 16 to 22.

Code used in class

Least squares demo

x <- c(10, 8, 13, 9, 11, 14, 6, 4, 12, 7, 5)
y <- c(8.04, 6.95, 7.58, 8.81, 8.33, 9.96, 7.24, 4.26, 10.84, 4.82, 5.68)
plot(x,y)
model.ls <- lm(y ~ x)
summary(model.ls)

coef(model.ls)
confint(model.ls)

names(model.ls)
model.ls$resisduals
resid(model.ls)

plot(x, y)
abline(model.ls)