Returns the Bray-Curtis (also known as Sorenson, 1 - percent similarity) pairwise distances for the objects in the data. It has been superseded by distance() but remains for backward compatibility.
matrix or data frame with rows as samples and columns as variables (such as species). Distances will be calculated for each pair of rows.
If rzero=TRUE, empty rows will be removed from the data before distances are calculated. Otherwise, the distance between two empty rows is assumed to be 0 (the default).
This function returns a column-order lower-triangular distance matrix. The returned object has an attribute, Size, giving the number of objects, that is, nrow(x). The length of the vector that is returned is nrow(x)*(nrow(x)-1)/2.
Sarah Goslee, Sarah.Goslee@ars.usda.gov
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