Add sample data x and y for tutorial

[tpq]

Maybe we can bundle an example CoDa toy data set into the package so newcomers can quickly see it working by loading something like...

data(coda_example)
x <- coda_example$x
y <- coda_example$y
codacore(x, y)

FYI bundling data should be straightforward with the usethis package https://usethis.r-lib.org/reference/use_data.html

[egr95]

Thanks for the suggestion - do you mean we should add this to the README, or bundle into codacore so that the guide no longer depends on the selbal package? Or both :)

[tpq]

Ah right! Yes, originally thinking add it to the README, but perhaps could replace in the guide too. It's low priority, but do think one less dependency for the end-users to install is a good thing!

[egr95]

Agreed!