elasticbandR Documentation

Elastic Band Data

Description

The elasticband data frame has 7 rows and 2 columns giving, for each amount by which an elastic band is stretched over the end of a ruler, the distance that the band traveled when released.

Usage

elasticband

Format

This data frame contains the following columns:

stretch

the amount by which the elastic band was stretched

distance

the distance traveled

Source

J. H. Maindonald

Examples

print("Example 1.8.1")

attach(elasticband)     # R now knows where to find stretch and distance
plot(stretch, distance) # Alternative: plot(distance ~ stretch)
detach(elasticband)
pause()

print("Output of Data Frames - Example 12.3.2")

write(t(elasticband),file="bands.txt",ncol=2)

sink("bands2.txt")
elasticband   # NB: No output on screen
sink()

print("Lists - Example 12.7")

elastic.lm <- lm(distance ~ stretch, data=elasticband)
 names(elastic.lm)
 elastic.lm$coefficients
elastic.lm[["coefficients"]]
pause()

elastic.lm[[1]]
pause()

elastic.lm[1]
pause()

options(digits=3)
elastic.lm$residuals 
pause()

elastic.lm$call
pause()

 mode(elastic.lm$call)