| plot.svmpath {svmpath} | R Documentation |
plot the svm solution at a step along the path
Description
produces a plot of the svm solution along the path, and optinally indicates support points
Usage
## S3 method for class 'svmpath'
plot(x, step, Size = 60, elbow.show = TRUE, support.show = TRUE, ...)
Arguments
x |
the |
step |
which step to plot; default is the last step. Use
|
Size |
If the solution is non-linear, this is the gridsize for |
elbow.show |
Should the points on the elbow be indicated |
support.show |
Should the support points be indicated |
... |
additional arguments to plot, allowing one to change, for example, "main", "xlab" etc |
Details
A two-dimensional plot is produced of the SVM solution. Makes sense only if X is two-dimensional. If not, the first two dimensions will be used
Value
A list is returned silently, with the ingredients of the plot
Author(s)
Trevor Hastie
References
The paper http://www-stat.stanford.edu/~hastie/Papers/svmpath.pdf, as well as the talk http://www-stat.stanford.edu/~hastie/TALKS/svmpathtalk.pdf.
See Also
coef.svmpath, svmpath, predict.svmpath, print.svmpath,summary.svmpath
Examples
data(svmpath)
attach(balanced.overlap)
fit <- svmpath(x,y,trace=TRUE,plot=FALSE)
plot(fit,step=2)
detach(2)