Sum of branch length of a classification dendrogram (Petchey and Gaston, 2002)

Usage

SumBL(traits, gower.dist = TRUE, method.hclust = "average", 
  scale.tr = TRUE, method.dist = "euclidian")

Arguments

traits: Traits matrix (traits in column)
gower.dist: Calculate Gower distance using the function daisy from package cluster.
method.hclust: Define the method for the hclust function (default is "average" i.e. UPGMA).
scale.tr: Does traits need to be scale before multi-traits metric calculation? Only use when gower.dist = FALSE. Default is yes.
method.dist: Method to calculate the distance in case of multi-traits metric (function dist). Only use when gower.dist = FALSE. Default is euclidian.

Value

The value of the sum of branch length from a classification dendrogram of traits.

References

Petchey, OL., and Gaston, KJ. 2002. Functional diversity (FD), species richness and community composition. Ecology Letters 5:402-411

Author

Adrien Taudiere

Examples


# \donttest{

data(finch.ind)
SumBL(traits.finch)
#> Warning: All individuals with one NA are excluded
#> [1] 28.98831
SumBL(traits.finch, gower.dist = FALSE)
#> Warning: All individuals with one NA are excluded
#> [1] 345.3096

# }