Description Usage Arguments Details Value See Also

Movement model that assumes speeds are Gamma distributed

1 |

`beta` |
parameters of the behavioural model. |

`dt` |
time intervals for speed calculation in hours. |

This function implements a movement model that assumes the speed of travel between locations is Gamma distributed, and for Estelle models, the change in bearing along the dog-leg path segments can be assumed Normally distributed with mean zero.

For Stella models, average speeds is calculated along great circle paths between primary locations (x). For Estelle, average speed is calculated along dog leg paths through the intermediate points (z), and the change in bearing at each intermediate point calculated.

If `beta`

is a vector, then `beta[1]`

and `beta[2]`

specify the shape and rate of the Gamma distribution of speeds.
If `beta`

has three elements, then `beta[3]`

specifies
the standard deviation of the change in bearing (in degrees) along
dog leg paths.

Alternately, these parameters can be specified individually for
each track segment by passing `beta`

as a matrix with one row
for each segment.

Functions to evaluate the contributions to the log posterior for the Estelle and Stella models.

`satelliteModel`

, `thresholdModel`

,
`groupedThresholdModel`

, `curveModel`

.

SWotherspoon/SGAT documentation built on June 8, 2017, 1:06 a.m.

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