Plot results from cross-validation

Plot results from cross-validation

# S3 method for TrainedOwl
plot(
  x,
  measure = c("auto", "mse", "mae", "deviance", "auc", "misclass"),
  plot_min = TRUE,
  ci_alpha = 0.2,
  ci_border = FALSE,
  ci_col = lattice::trellis.par.get("superpose.line")$col,
  ...
)

Arguments

x	an object of class 'TrainedOwl', typically from a call to trainOwl()
measure	any of the measures used in the call to trainOwl(). If measure = "auto" then deviance will be used for binomial and multinomial models, whilst mean-squared error will be used for Gaussian and Poisson models.
plot_min	whether to mark the location of the penalty corresponding to the best prediction score
ci_alpha	alpha (opacity) for fill in confidence limits
ci_border	color (or flag to turn off and on) the border of the confidence limits
ci_col	color for border of confidence limits
...	other arguments that are passed on to lattice::xyplot()

Value

An object of class 'trellis' is returned and, if used interactively, will most likely have its print function lattice::print.trellis()) invoked, which draws the plot on the current display device.

See also

trainOwl(), lattice::xyplot(), lattice::panel.xyplot()

Examples

# Cross-validation for a SLOPE binomial model
set.seed(123)
tune <- trainOwl(subset(mtcars, select = c("mpg", "drat", "wt")),
                 mtcars$hp,
                 q = c(0.1, 0.2),
                 number = 10)
plot(tune, ci_col = "salmon", col = "black")