1 \name{richness.yule.test}
2 \alias{richness.yule.test}
3 \title{Test of Diversification-Shift With the Yule Process}
5 This function performs a test of shift in diversification rate using
6 probabilities from the Yule process.
9 richness.yule.test(x, t)
12 \item{x}{a matrix or a data frame with at least two columns: the first
13 one gives the number of species in clades with a trait supposed to
14 increase or decrease diversification rate, and the second one the number of
15 species in the sister-clades without the trait. Each
16 row represents a pair of sister-clades.}
17 \item{t}{a numeric vector giving the divergence times of each pair of
21 a data frame with the \eqn{\chi^2}{chi2}, the number of degrees of
22 freedom (= 1), and the \emph{P}-value.
25 Paradis, E. Shift in diversification in sister-clade comparisons: a
26 more powerful test. (manuscript submitted)
28 \author{Emmanuel Paradis}
30 \code{\link{slowinskiguyer.test}}, \code{\link{mcconwaysims.test}}
31 \code{\link{diversity.contrast.test}}
34 ### see examples(mcconwaysims.test)