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),
or 'W2' (for Wasserstein-2 distance).
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.