Saturday, April 11, 2009

Datasets

# PK
xyplot(conc~time|Subject, data=Indometh) # IV
xyplot(conc~Time|Subject, data=Theoph) # oral

# Linear
plot(dist~speed, data=cars)
plot(eruptions~waiting, data=faithful)
xyplot(weight~Time | Diet, data=ChickWeight)
lme(weight~Time+Diet, random=~1+Time |Chick, data=ChickWeight)
xyplot(height~age|Seed, data=Loblolly)

# Latin-square
OrchardSprays

# ANOVA
boxplot(weight~group, data=PlantGrowth)
boxplot(weight~feed, data=chickwts)

boxplot(breaks~wool+tension, data=warpbreaks)


# Nonlinear
xyplot(uptake~conc|Plant, data=CO2)
xyplot(density ~ conc | Run, data=DNase)
xyplot(rate~conc|state, data=Puromycin)
xyplot(circumference~age|Tree, data=Orange)
plot(pressure~temperature, data=pressure)

# multivariate
attitude
trees

# logistic regression
esoph
glm(cbind(ncases, ncontrols)~agegp+tobgp*alcgp,data=esoph,family=binomial())

# paired t-test
t.test(extra~group, paired=TRUE, data=sleep)

##### MASS
# Survival
Melanoma
VA
gehan
leuk

xyplot(BPchange~Dose | Animal+Treatment, data=Rabbit)
xyplot(size~Time | treat, data=Sitka)

# logistic regression
birthwt

# Poisson Regression
boxplot(log(y)~limit, data=Traffic)
summary(glm(y~limit, data=Traffic, family=poisson))
summary(glm(y~day+limit, data=Traffic, family=poisson))

# nonlinear
plot(steam)

# two-way anova
genotype

# ANACOVA
anova(lm(Postwt~Prewt+Treat, data=anorexia))

# paired t-test
write.csv(anorexia[anorexia$Treat=="CBT"2:3],"u:/data/R/datasets/paired_CBT.csv",row.names=FALSE)

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