cu_crw_covfun: Create covariance function for a fitted CRW model object

In dsjohnson/crawlUtils: Enhance And Integrate the {crawl} Package For Spatial Analysis Of Telemetry Output

Create covariance function for a fitted CRW model object

Description

A function is created to evaluate the covariance function of the fitted CRW movement model

Usage

cu_crw_covfun(x)

Arguments

x	A crwFit object created by a call to crwMLE

Details

The function returns a function to evaluate the covariance of the fitted Integrated Ornstein-Ulenbeck movement model. The returned function has 3 arguments: (1) t1 and (2) t2 both vectors of times to evaluate the covariance function of the fitted IOU model, and (3) E (defaults to E=0). Which is the "zero" time of the process. Typically E will be the time of the first observation.

Author(s)

Devin S. Johnson

References

Taylor, J. M., Cumberland, W. G., & Sy, J. P. (1994). A stochastic model for analysis of longitudinal AIDS data. Journal of the American Statistical Association, 89(427), 727-736.

Johnson, D. S., London, J. M., Lea, M. A., & Durban, J. W. (2008). Continuous‐time correlated random walk model for animal telemetry data. Ecology, 89(5), 1208-1215.

dsjohnson/crawlUtils documentation built on Sept. 13, 2024, 1:34 p.m.