This function makes a $\delta$ plot following Holland et
al. (2002).
Usage
delta.plot(X, k = 20, plot = TRUE, which = 1:2)
Arguments
Value
This function returns invisibly a named list with two components:
counts
{the counts for the histogram of
$\delta_q$ values}delta.barthe mean $\delta$ value for each
observation
Details
See Holland et al. (2002) for details and interpretation.
The computing time of this function is proportional to the fourth
power of the number of observations ($O(n^4)$), so calculations
may be very long with only a slight increase in sample size.
References
Holland, B. R., Huber, K. T., Dress, A. and Moulton, V. (2002) Delta
plots: a tool for analyzing phylogenetic distance data.
Molecular Biology and Evolution, 12, 2051--2059.