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James-Thorson-NOAA / VAST

Spatio-temporal analysis of univariate or multivariate data, e.g., standardizing data for multiple species or stages
http://www.FishStats.org
GNU General Public License v3.0
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how to use non-Euclidean distances #118

Closed scrmc closed 6 years ago

scrmc commented 6 years ago

Hi, Is it possible to use a matrix of hydrological distances instead of the matrix of Euclidean distances? If so how can I do it?

Thank you, Sara Carona

James-Thorson commented 6 years ago

We are currently adding an option to use an exponential correlation function on stream networks, based on recent research that didn't use VAST: https://esajournals.onlinelibrary.wiley.com/doi/abs/10.1002/eap.1767. The first iteration of the new feature is technically available in VAST, but has essentially no testing or documentation. I recommend either (1) check back in 6 months, (2) email me individually for an example script, or (3) email me personally to be introduced to the post-doc working on the project. I will not be providing any support for this feature until it is fully documented.