plot function

plot method for support vector object

Plot a binary classification support vector machine object. The plot function returns a contour plot of the decision values.

## S4 method for signature 'ksvm'
plot(object, data=NULL, grid = 50, slice = list())

Arguments

• object: a ksvm classification object created by the ksvm function
• data: a data frame or matrix containing data to be plotted
• grid: granularity for the contour plot.
• slice: a list of named numeric values for the dimensions held constant (only needed if more than two variables are used). Dimensions not specified are fixed at 0.

See Also

ksvm

Author(s)

Alexandros Karatzoglou

alexandros.karatzoglou@ci.tuwien.ac.at

Examples

## Demo of the plot function
x <- rbind(matrix(rnorm(120),,2),matrix(rnorm(120,mean=3),,2))
y <- matrix(c(rep(1,60),rep(-1,60)))

svp <- ksvm(x,y,type="C-svc")
plot(svp,data=x)