# tgp.trees

##### Plot the MAP Tree for each height encountered by the Markov Chain

Plot the maximum a' posteriori (MAP) tree as a function of tree height, and show the log posterior probabilities for comparison.

##### Usage

`tgp.trees(out, heights = NULL, main = NULL, ...)`

##### Arguments

- out
`"tgp"`

-class object which is the output of one the model functions with tree support (e.g.`btgpllm`

)- heights
Index vector of length less than

`length(out$trees)`

describing trees to plot by their height. Default (`NULL`

) is to plot all trees, one for each height encountered when sampling from the Markov chain of the tree posterior. This is equivalent to`heights = out$posts$height`

. Specifying`heights = "map"`

causes (only) the maximum a' posteriori (MAP) height tree to be plotted- main
Optional character string to add to the main title of the plot

- …
Extra arguments to the

`draw.tree`

function from maptree

##### Details

The maximum a' posteriori (MAP) tree encountered at each height
(in the MCMC chain) is plotted, and the log posterior probabilities
are shown for comparison. The text at the branches in the tree show
the splitting variable and value. The text at the leaves show the
number of input data points (`X`

and `Z`

) that fall
into the region(s) along with an estimate of the variability therein.

##### Value

The only output of this function is beautiful tree diagrams.

##### Note

Plotting trees that the maptree library is installed, which itself requires that the combinat library also be installed.

See `vignette("tgp")`

and the examples sections of the functions
under “See Also”, below

##### References

##### See Also

`bgpllm`

, `btlm`

, `blm`

,
`bgp`

, `btgpllm`

,
`plot.tgp`

, `mapT`

, `vignette("tgp")`

*Documentation reproduced from package tgp, version 2.4-17, License: LGPL*