oneway.plot {s20x}R Documentation

One-way Analysis of Variance Plot

Description

Displays stripplot/boxplot of the reponse variable with intervals by factor levels. It is used as part of a one-way anova analysis.

Usage

oneway.plot(formula, conf.level = 0.95, interval.type = "tukey",
            pooled = TRUE, strip = TRUE, vert = TRUE, verbose = FALSE,
            ylabel = deparse(terms(formula)[[2]]),
            flabel = deparse(terms(formula)[[3]]))

Arguments

formula a symbolic description of the model to be fit.
conf.level confidence level of the intervals.
interval.type three options for intervals appearing on plot: "hsd","lsd" or "ci".
pooled two options: pooled or unpooled standard deviation used for plotted intervals.
strip if strip=F, boxplots are displayed instead.
vert if vert=F, horizontal stripplots are displayed instead (boxplots can only be displayed vertically).
verbose if true, print intervals on console.
ylabel can be used to replace variable name of y by another string.
flabel can be used to replace variable name of f by another string.

See Also

"summary.1way", "welch.test".

Examples

##see example in "summary.1way"

##sheep data: 
data(computer)
attach(computer)
oneway.plot(score~selfassess)
detach(computer)

[Package s20x version 2.6.1.000 Index]