iCAMP (version 1.5.12)

mpdn: Mean pairwise distance (MPD)

Description

Calculate mean pairwise distance (MPD) in each community in a given community matrix.

Usage

mpdn(comm, pd, abundance.weighted = TRUE, time.output = FALSE)

Arguments

comm

matrix or data.frame, community data matrix, rownames are sample names, colnames are OTU ids.

pd

matrix, pairwise phylogenetic distance matrix.

abundance.weighted

logic, whether weighted by species abundance, default is TRUE, means weighted.

time.output

logic, whether to count calculation time, default is FALSE.

Value

result is a numeric vector with sample names

Details

mean pairwise distance (MPD) in each community, which is the same index as 'mpd' in package 'picante', but calculated by matrix multiplication.

References

Webb C, Ackerly D, McPeek M, and Donoghue M. (2002). Phylogenies and community ecology. Annual Review of Ecology and Systematics 33:475-505.

Kembel, S.W., Cowan, P.D., Helmus, M.R., Cornwell, W.K., Morlon, H., Ackerly, D.D. et al. (2010). Picante: R tools for integrating phylogenies and ecology. Bioinformatics, 26, 1463-1464.

See Also

NRI.p

Examples

# NOT RUN {
data("example.data")
comm=example.data$comm
pd=example.data$pd
mpd=mpdn(comm = comm, pd = pd, abundance.weighted = TRUE)
# }