R help - Mar 2017 - Earth Mover's Distance

Dear All,
>From time to time I need to resort to the calculation of the earth
mover' distance (see

https://en.wikipedia.org/wiki/Earth_mover's_distance and
https://en.wikipedia.org/wiki/Wasserstein_metric .

In the past I used the package

https://r-forge.r-project.org/projects/earthmovdist/

which apparently is no longer available, but there is plenty of choice
in R.
>From the transport package, I found this example
set.seed(27)
x <- pp(matrix(runif(100),50,2))
y <- pp(matrix(runif(100),00,2))
wasserstein(x,y,p=1)

but it is not 100% clear to me how to interpret it.
Are x and y meant as histograms where the the center of each bin is
provided and the total mass in the bins is automatically normalized to
1?

Essentially, my situation is that I have two univariate samples of unequal
size. I would like to bin them and calculate the earth mover's
distance between them.

I am not sure if this is what the example above does.
Cheers

Lorenzo

The earthmovdist repo on R-Forge is alive and well.  Rainer and I simply
stopped doing work on it as the authors of the Emd-L1 library we use could
not get a liberal license for this.  Note the language in the source code
(src/emdL1.cpp) and please make sure YOUR use is in compliance.

But as I use R-Forge less than GitHub, I just brought the repo over to

    https://github.com/eddelbuettel/earthmovdist

and may make an update or two in the coming days to make it compliant with R
CMD check on R release and R devel, and in process may make the Rcpp use a
little more current...

Dirk

-- 
http://dirk.eddelbuettel.com | @eddelbuettel | edd at debian.org