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ncsu-landscape-dynamics / GRASS_FUTURES

Urban growth model designed to capture the spatial structure of future development
https://cnr.ncsu.edu/geospatial/research/landscape-forecasting/futures/
GNU General Public License v2.0
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gamma or alpha #2

Closed petrasovaa closed 9 years ago

petrasovaa commented 9 years ago

We have to decide if we want to use gamma [1] or alpha [2] for the gravity model. Minor issue, but must be resolved.

[1] Meentemeyer, R. K., Tang, W., Dorning, M. a., Vogler, J. B., Cunniffe, N. J., & Shoemaker, D. a. (2012). FUTURES: Multilevel Simulations of Emerging Urban–Rural Landscape Structure Using a Stochastic Patch-Growing Algorithm. Annals of the Association of American Geographers, (October 2012), 121004082925004. doi:10.1080/00045608.2012.707591

[2] Dorning, M. A., Koch, J., Shoemaker, D. A., & Meentemeyer, R. K. (2015). Simulating urbanization scenarios reveals tradeoffs between conservation planning strategies. Landscape and Urban Planning, 136, 28–39. doi:10.1016/j.landurbplan.2014.11.011

petrasovaa commented 9 years ago

We (Monica, Derek, John and Anna) decided for gamma as it is in [1]. The current GRASS code already uses gamma in the interface (user visible labels), the implementation keeps alpha as the name of the variable, we could change that, but it is not high priority.