This function takes a movement path defined by xyt values (not necessarily equally spaced in time), and converts it into a CTMC path (a continuous-time discrete-space path on grid cells in a raster).
Software to facilitates taking movement data in xyt format and pairing it with raster covariates within a continuous time Markov chain (CTMC) framework. As described in Hanks et al. (2015) <DOI:10.1214/14-AOAS803> , this allows flexible modeling of movement in response to covariates (or covariate gradients) with model fitting possible within a Poisson GLM framework.
● Data Source:
CranContrib
● Keywords: Animal Movement
● Alias: ctmcmove, ctmcmove-package
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This function takes a raster stack or raster object and creates two matrices for each raster layer, one which contains the x coordinates of the gradient of the raster layer and one which contains the y coordinates of the gradient of the raster layer.