Quick and Dirty Estimates for Wildlife Populations

Provides simple, fast functions for maximum likelihood and Bayesian estimates of wildlife population parameters, suitable for use with simulated data or bootstraps. Early versions were indeed quick and dirty, but optional error-checking routines and meaningful error messages have been added. Includes single and multi-season occupancy, closed capture population estimation, survival, species richness and distance measures.


News

CHANGES in 0.1.3 (2017-11-18)

  • Calculation of SEs of fitted values now uses less memory, works for large data sets.

  • Functions more robust to underflow/overflow: closedCap*, occ2sps, occSS*

  • Changed parameterization in Bsecr0 from lam0 to g0; better default priors.

  • Bug fix in BoccSS0: burnin iterations are now discarded.

CHANGES in 0.1.2 (2017-09-10)

  • Added diagPlot function and improved other diagnostic plots.

  • Added function Bpoisson; Bbinom renamed Bbinomial

CHANGES in 0.1.1 (2017-06-09)

  • Added 'coef', 'vcov' and 'predict' methods for 'wiqid' objects.

  • 'survCJS' gains an 'interval' argument to deal with time intervals of unequal length.

  • dots argument added to MLE functions to pass parameters to 'nlm'.

  • Improved coding of several functions to prevent under/overflow issues.

Reference manual

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install.packages("wiqid")

0.1.5 by Mike Meredith, 2 months ago


Browse source code at https://github.com/cran/wiqid


Authors: Mike Meredith


Documentation:   PDF Manual  


GPL-3 license


Imports stats, truncnorm, MASS, coda

Depends on HDInterval

Suggests secr, shiny, rjags


See at CRAN