draw.vlmc {VLMC}

Draw a "VLMC" Object (in ASCII) as tree.

Description

Draws a vlmc object, typically the result of vlmc(.), to the R console, using one line per node.

Usage

draw(x, ...)
## S3 method for class 'vlmc'
draw(x, kind = 3, flag = TRUE, show.hidden = 0,
     cumulative = TRUE, delta = cumulative, debug = FALSE, ...)

Arguments

x

typically the result of vlmc(..).

kind

integer code for the “kind of drawing”, in {0,1,2,3}.

flag

logical; ..

show.hidden

integer code; if not 0, give some indications about hidden (final) nodes .....

cumulative

logical indicating if the cumulative counts should be shown for nonterminal nodes; the ‘delta’s can only be computed from the cumulative counts, i.e., cumulative = FALSE should be used only by the knowing one.

delta

logical indicating if delta, i.e. \delta(n, p(n)) should be computed and printed for each (non-root) node n with parent p(n). Note that this does not really make sense when cumulative = FALSE.

debug

logical; if TRUE, some extraneous progress information is printed to the R console.

...

(potentially more arguments)

Details

.............

.............

Note that the counts internally are stored “non-cumulatively”, i.e., as difference counts which is useful for likelihood (ratio) computations. In the internal C code, the difference counts are originally computed by the comp_difference() function after tree generation. draw(*, cumulative = TRUE) internally calls the C function cumulate() for the cumulative sums.

Value

nothing is returned.

Author(s)

Martin Maechler

See Also

vlmc.

Examples

  example(vlmc)
  draw(vlmc.dt1c01)
  draw(vlmc.dt1c01, flag = FALSE)
  draw(vlmc.dt1c01, kind = 1)
  draw(vlmc.dt1)
  draw(vlmc.dt1, show = 3)
  draw(vlmc.dt1, cumulative = FALSE)