Plot Tuning Object
Visualizes the results of parameter tuning.
## S3 method for class 'tune'
plot(x, type = c("contour", "perspective"), theta = 60,
col = "lightblue", main = NULL, xlab = NULL, ylab = NULL,
swapxy = FALSE, transform.x = NULL, transform.y = NULL,
transform.z = NULL, color.palette = hsv_palette(),
nlevels = 20, ...)x |
an object of class |
type |
choose whether a contour plot or a perspective plot is used if two parameters are to be visualized. Ignored if only one parameter has been tuned. |
theta |
angle of azimuthal direction. |
col |
the color(s) of the surface facets. Transparent colors are ignored. |
main |
main title |
xlab, ylab |
titles for the axes. N.B. These must be character strings; expressions are not accepted. Numbers will be coerced to character strings. |
swapxy |
if |
transform.x, transform.y, transform.z |
functions to transform
the parameters ( |
color.palette |
color palette used in contour plot. |
nlevels |
number of levels used in contour plot. |
... |
Further graphics parameters. |
David Meyer (based on C/C++-code by Chih-Chung Chang and Chih-Jen Lin)
David.Meyer@R-project.org
data(iris)
obj <- tune.svm(Species~., data = iris, sampling = "fix",
gamma = 2^c(-8,-4,0,4), cost = 2^c(-8,-4,-2,0))
plot(obj, transform.x = log2, transform.y = log2)
plot(obj, type = "perspective", theta = 120, phi = 45)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.