diss: Dissimilarity between detrital age distributions
Description
Calculates the pairwise dissimilarity between detrital
age distributions, using either the Wasserstein-2 or
Kolmogorov-Smirnov distance.
Usage
diss(x, ...)
# S3 method for default
diss(x, y, method = "KS", ...)
# S3 method for detritals
diss(x, method = "W2", ...)
Value
an object of class dist.
Arguments
x
an object of class detrital OR a vector of numbers
...
extra arguments (not used)
y
a vector of numbers
method
either 'KS' (for Kolmogorov-Smirnov distance),
'W2' (for Wasserstein-2 distance), or `Euclidean`
(which uses R's default dist function).
Author
Written by Pieter Vermeesch, using modified code from
Mathieu Vrac's CDFt package (KolmogorovSmirnov
function), and Dominic Schuhmacher's transport package
(transport1d function).
Details
The Kolmogorov-Smirnov statistic is the maximum vertical
difference between two empirical cumulative distribution
functions. The Wasserstein distance is a function of the area
between them. Both dissimilarity measures are useful for
multidimensional scaling.