xmp11.06 {Devore5} | R Documentation |
The xmp11.06
data frame has 24 rows and 3 columns.
This data frame contains the following columns:
Devore, J. L. (2000) Probability and Statistics for Engineering and the Sciences (5th ed), Duxbury
(1971), ``Compounding of discriminative stimuli from the same and different sensory modalities'', J. Experimental Analysis and Behavior, 337-342
data(xmp11.06) xmp11.06$Stimulus <- factor(xmp11.06$Stimulus, labels = c("L1", "L2", "T", "L1 + L2", "L1 + T", "L2 + T")) xmp11.06$Subject <- factor(xmp11.06$Subject) plot(Resp ~ Stimulus, data = xmp11.06, col = "lightgray", main = "Data from Example 11.6", ylab = "Mean number of responses") for (i in seq(along = levels(xmp11.06$Subject))) { attach(xmp11.06[ xmp11.06$Subject == i, ]) lines(Resp ~ as.integer(Stimulus), col = i+1, type = "b") } legend(0.8, 95, paste("Subject", levels(xmp11.06$Subject)), col = 1 + seq(along = levels(xmp11.06$Subject)), lty = 1) fm1 <- lm(Resp ~ Stimulus + Subject, data = xmp11.06) anova(fm1) # compare to Table 11.5, page 443 attach(xmp11.06) means <- sort(tapply(Resp, Stimulus, mean)) means diff(means) # successive differences qtukey(0.95, nmeans = 6, df = 15) #for Tukey comparisons detach()