plot.TWIX {TWIX}R Documentation

Plotting method for TWIX objects

Description

Plot an TWIX or bootTWIX object generated by TWIX or bootTWIX function(s).

Usage

## S3 method for class 'TWIX':
plot(x, sq = 1:length(x$trees), type = "deviance",
                i.plot = FALSE, size = 3, freq = TRUE,
                breaks = "Sturges", pch = par("pch"), ...)

Arguments

x an object of class TWIX.
sq Integer vector giving the number of trees to be plotted.
type one of "deviance", "ccr","d&c".
i.plot logical. If TRUE, iplot will be used (library iplot will be required).
size value for largest circle (cex).
freq logical. Should the frequence or density be plotted.
breaks see histogram.
pch a vector of plotting characters or symbols.
... graphical parameters can be given as arguments to 'plot'.

Details

If type = "deviance":
the training deviance vs. test deviance will be plotted.
If type = "ccr":
the correct classification rate(CCR) for training data vs. the CCR for test data.
If type = "d&c":
the deviance vs. CCR for test data.

See Also

TWIX, get.tree

Examples

    data(olives)

    ### train and test data
    set.seed(123)
    i <- sample(572,150)
    ic <- setdiff(1:572,i)
    training <- olives[ic,]
    test <- olives[i,]

    TM1 <- TWIX(Region~.,data=training[,1:9],test.data=test,
                topN=c(5,3),method="local")
    plot(TM1)
    plot(TM1,type="ccr")
    plot(TM1,type="d&c")


[Package TWIX version 0.2.6 Index]