plotVotes {rfPermute}

Plot Vote Distribution

Description

For classification models, plot distribution of votes for each sample in each class.

Usage

plotVotes(x, type = NULL, freq.sep.line = TRUE, plot = TRUE)

Arguments

x

a rfPermute or randomForest model object.

type

either area for stacked continuous area plot or bar for discrete stacked bar chart. The latter is prefered for small numbers of cases. If not specified, a bar chart will be used if all classes have <= 30 cases.

freq.sep.line

put frequency of original group on second line in facet label? If FALSE, labels are single line. If NULL frequencies will not be included in labels.

plot

display the plot?

Value

the ggplot2 object is invisibly returned.

Author(s)

Eric Archer [e-mail]

Examples

library(randomForest)
data(mtcars)

rf <- randomForest(factor(am) ~ ., mtcars)
plotVotes(rf)