Discrete Global Grids

Thank you Richard that will be very useful. For those who want some dggrids which "ready to use" I put the first 10 isea3h resolutions provided by dggrid on the globe in long data frame format here.

https://github.com/andrewzm/dggrids

library(dggrids)
data(isea3h)

Best,
Andrew

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Andrew Zammit Mangion, Statistical Computing Scientist, 
Centre for Environmental Informatics, National Institute for Applied Statistics Research Australia (NIASRA), School of Mathematics and Applied Statistics, 
University of Wollongong NSW 2522, 
Australia Office telephone:
Within Australia... (02) 4221 5112 
International... +61 2 4221 5112
E-mail: azm at uow.edu.au
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I've recently released a package, dggridR, which interfaces with dggrid,
and divides the entire surface of the Earth into equally-sized hexagonal
bins without the need for intermediate projections.

This is useful for doing spatial statistics such as prevalence,
presence-absence binning, and so on.

The package also contains utilities to aid in plotting the results.

Install with `install.packages('dggridR')` or find it on Github at
https://github.com/r-barnes/dggridR/

Cheers,
Richard

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