The graphical output depends on the target function at hand. - For 1D numeric functions the upper plot shows the true function (if known), the model and the (infill) points. The lower plot shows the infill criterion. - For 2D mixed target functions only one plot is displayed. - For 2D numeric only target functions up to four plots are presented to the viewer: - levelplot of the true function landscape (with [infill] points), - levelplot of the model landscape (with [infill] points), - levelplot of the infill criterion - levelplot of the standard error (only if learner supports standard error estimation). - For bi-criteria target functions the upper plot shows the target space and the lower plot displays the x-space.
renderExampleRunPlot(object, iter, densregion = TRUE, se.factor = 1,
single.prop.point.plots = FALSE, xlim = NULL, ylim = NULL,
point.size = 3, line.size = 1, trafo = NULL, colors = c("red", "blue",
"green"), ...)
[function
]
MBOExampleRun
or MBOExampleRunMultiObj
object.
[integer
]
Selected iteration of object
to render plots for.
[logical(1)
]
Should the background be shaded? Default is TRUE
.
Only used if learner supports computation of standard error.
[numeric(1)
]
If the model provides local standard error estimation,
in addition to the mean response yhat(x) +- se.factor * se(x)
is plotted above and below.
Default is 1.
[logical(1)
]
Parameter for MOI-MBO Multi-point proposal: Should every proposed point
be displayed in a single plot - or one plot per Iteration? Default is FALSE
indicating single plots per proposed points.
[numeric(2)
]
For 1D: xlim
parameter for first and second plot.
Default is range of x-values evaluated in run object object
.
[numeric(2)
]
For 1D: ylim
parameter for first plot, for the second plot ylim
is always set
automatically, depending on the range of the evaluated infill criterion.
Default for the first plot is a heuristic to have the true function
and yhat(x) +- se.factor2 * se(x)
both in the plot. Note that this heuristic might
change the ylim
setting between plot iterations.
[numeric(1)
]
Point size for plotted points. Default is 3.
[numeric(1)
]
Line width of the graphs of plotted functions.
[list
]
List of transformation functions of type MBOTrafoFunction
for
the different plots.
For 1D: The list elements should be named with “y” (applied to objective function and model)
or “crit” (applied to the criterion). Only applied to plots with numeric parameters.
For 2D: The list should contain at least one element “y”, “yhat”, “crit”
or “se”.
This way one can specify different transformations for different plots.
If a single function is provided, this function is used for all plots.
[character(3)
]
Specify colors for point in the plots. Must be a vector of length 3,
each element a color for the type design, prop and seq respectively.
Default is red for the initial design, blue for already proposed points
and green for the actual iteration.
[any] Currently not used.
[list
]. List containing separate ggplot object. The number of plots depends on
the type of MBO problem. See the description for details.