File: plot.gafs.Rd

package info (click to toggle)
r-cran-caret 6.0-73%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 5,884 kB
  • ctags: 9
  • sloc: ansic: 207; sh: 10; makefile: 2
file content (70 lines) | stat: -rw-r--r-- 1,783 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/gafs.R
\name{plot.gafs}
\alias{plot.gafs}
\alias{plot.safs}
\title{Plot Method for the gafs and safs Classes}
\usage{
\method{plot}{gafs}(x, metric = x$control$metric["external"],
  estimate = c("internal", "external"), output = "ggplot", ...)
}
\arguments{
\item{x}{an object of class \code{\link{gafs}} or \code{\link{safs}}}

\item{metric}{the measure of performance to plot (e.g. RMSE, accuracy, etc)}

\item{estimate}{the type of estimate: either "internal" or "external"}

\item{output}{either "data", "ggplot" or "lattice"}

\item{\dots}{options passed to \code{\link[lattice]{xyplot}}}
}
\value{
Either a data frame, ggplot object or lattice object
}
\description{
Plot the performance values versus search iteration
}
\details{
The mean (averaged over the resamples) is plotted against the search
iteration using a scatter plot.

When \code{output = "data"}, the unaveraged data are returned with columns
for all the performance metrics and the resample indicator.
}
\examples{

\dontrun{
set.seed(1)
train_data <- twoClassSim(100, noiseVars = 10)
test_data  <- twoClassSim(10,  noiseVars = 10)

## A short example
ctrl <- safsControl(functions = rfSA,
                    method = "cv",
                    number = 3)

rf_search <- safs(x = train_data[, -ncol(train_data)],
                  y = train_data$Class,
                  iters = 50,
                  safsControl = ctrl)

plot(rf_search)
plot(rf_search,
	 output = "lattice",
	 auto.key = list(columns = 2))

plot_data <- plot(rf_search, output = "data")
summary(plot_data)
    }

}
\author{
Max Kuhn
}
\seealso{
\code{\link{gafs}}, \code{\link{safs}},
\code{\link[ggplot2]{ggplot}}, \code{\link[lattice]{xyplot}}
}
\keyword{hplot}