Plot Data

Provides a plot of data points for each group or level mean.

Usage

# S3 method for data.frame
plotData(frame, add=FALSE, main=NULL, ylab="Outcome", xlab="", offset=.1, method="stack", jitter=.05, col=rgb(0, 0, 0, .3), pch=16)

# S3 method for formula
plotData(formula, add=FALSE, main=NULL, ylab="Outcome", xlab="", offset=.1, method="stack", jitter=.05, col=rgb(0, 0, 0, .3), pch=16)

Arguments

frame

a set of (non-empty) numeric vectors of data values

formula

a formula of the form lhs ~ rhs where lhs is a numeric variable giving the data values and rhs a factor giving the corresponding groups

add

whether the plot should added to the existing plot

ylab

a label for the y-axis

xlab

a label for the x-axis

main

a custom title for the graph

ylim

custom limits for the y axis

offset

a value indicating the offset of the points

method

method for stacking or jittering the data

jitter

a value indicating the amount of jitter (if method is set to jitter)

col

a value for the shaded color of the points

pch

a value indicating the symbol for the points

Details

`plotData` can be used to initialize a new plot or add to an existing plot (using the `add` argument). `addData` is identical to `plotData` without the need to utilize the `add` argument.

Value

The returned plot contains the data for the groups or variables.