| mapT {tgp} | R Documentation |
Plot the maximum a' posteriori (MAP) tree from a "tgp"-class
object, or add one on top of an existing plot. Like plot.tgp,
projections and slices of trees can be plotted as specified
mapT(out, proj = NULL, slice = NULL, add = FALSE, lwd = 2, ...)
out |
"tgp"-class object which is the output of one
the model functions with tree support (e.g. btgpllm) |
proj |
1-or-2-Vector describing the dimensions to be shown in a
projection. The argument is ignored for 1-d data, i.e., if x$d
== 1. For 2-d data, no projection needs be specified— the
default argument (proj = NULL) will result in a 2-d perspective
or image plot. 1-d projections of 2-d or higher data are are
supported, e.g., proj = c(2) would show the second variable
projection. For 3-d data or higher, proj=NULL defaults to
proj = c(1,2) which plots a 2-d projection for the first two
variables. Slices have priority over projections—
see next argument (slice)— when non-null arguments are
provided for both. |
slice |
list object with x and z fields, which
are vectors of equal length describing the slice to be plotted, i.e.,
which z-values of the x$d - 2 inputs x$X and
x$XX should be fixed to in order to obtain a 2-d visualization.
For example, for 4-d data, slice = list(x=(2,4), z=c(0.2, 1.5) will
result in a 2-d plot of the first and third dimensions which have
the second and fourth slice fixed at 0.5 and 1.5. The default is
NULL, yielding to the proj argument. Argument is
ignored for 1-d data, i.e., if x$d == 1 |
add |
Specify whether the to add partitions to an existing plot
(add = TRUE) or to make a new plot showing the data
out$X along with the partitions (default add = FALSE) |
lwd |
Plotting argument specifying the width of the lines used to depict the partitions |
... |
Additional arguments to plot used when add = FALSE |
The only output of this function is a beautiful region-representation of the MAP tree.
For examples, see vignette("tgp") and the examples provided
in the documentation for the tgp.design function
Robert B. Gramacy rbgramacy@ams.ucsc.edu
http://www.ams.ucsc.edu/~rbgramacy/tgp.html
plot.tgp, tgp.trees,
tgp.design, vignette("tgp")