OneWayVarPlot: Displays a three-panel 'bwplot' of the data by group, of the...

Description Usage Arguments Value Author(s) Examples

View source: R/OneWayVarPlot.R

Description

Displays a three-panel bwplot of the data by group, of the group means, and of the entire dataset. This is an approximate visualization of the Mean Square lines from the ANOVA table for a one-way ANOVA model. The groups are centered using medians by default. Means, and anything else, is an option.

Usage

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OneWayVarPlot(x, data, ...,
              main="Variability of Groups, Centers of Groups, and all Data",
              centerFunctionName="median",
              center=TRUE)

Arguments

x

Model formula with one response variable and one factor.

data

data.frame

...

Other arguments to be forwarded to the panel function.

main

main title for graph.

centerFunctionName

Name of centering function, with "median" as the default. "mean" is another option.

center

Logical. If TRUE, the default, the bwplots are centered by subtracting their center (by default the median). If FALSE the bwplots are plotted at their observed values.

Value

Three-panel trellis object.

Author(s)

Richard M. Heiberger <[email protected]>

Examples

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data(batch)
OneWayVarPlot(Calcium ~ Batch, data = batch)

Example output

Loading required package: lattice
Loading required package: grid
Loading required package: latticeExtra
Loading required package: RColorBrewer
Loading required package: multcomp
Loading required package: mvtnorm
Loading required package: survival
Loading required package: TH.data
Loading required package: MASS

Attaching package: 'TH.data'

The following object is masked from 'package:MASS':

    geyser

Loading required package: gridExtra
Warning messages:
1: In formals(fun) : argument is not a function
2: In formals(fun) : argument is not a function

HH documentation built on May 29, 2017, 7:49 p.m.

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