cjs.lik: A likelihood function for unadjusted- or adjusted-for-taglife...
In Columbia-Basin-Research-West/cbrATLAS: Active Tag Life Adjusted Survival Modeling
cjs.lik R Documentation
A likelihood function for unadjusted- or adjusted-for-taglife Cormack-Jolly-Seber (CJS) estimates
Description
This is a likelihood function for unadjusted- or adjusted-for-taglife
Cormack-Jolly-Seber (CJS) estimates. It is based on Skalski et al. (1998).
Adjustment to survival for estimated tag life as described in Townsend et al.
(2006).
Usage
cjs.lik(params, counts.in, num.period, use.hist, L.in = NULL, d.in = NULL)
Arguments
params
The likelihood MLE estimators (S,p,l) in a single vector
counts.in
Vector of summed detections by history (names are history)
num.period
Number of detection periods in history
use.hist
Matrix of unique detection histories
L.in
The probability that a tag is working at a detection site at a given time. Set to 1 if active tags not indicated. p(tag working) is cumulative to each site, not a multiplicate from site to site
d.in
The probability a tag is censored given that it's detected
Value
This function returns a negative log-likelihood
Columbia-Basin-Research-West/cbrATLAS documentation built on April 1, 2022, 1:52 p.m.
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| cjs.lik | R Documentation |
A likelihood function for unadjusted- or adjusted-for-taglife Cormack-Jolly-Seber (CJS) estimates
Description
This is a likelihood function for unadjusted- or adjusted-for-taglife Cormack-Jolly-Seber (CJS) estimates. It is based on Skalski et al. (1998). Adjustment to survival for estimated tag life as described in Townsend et al. (2006).
Usage
cjs.lik(params, counts.in, num.period, use.hist, L.in = NULL, d.in = NULL)
Arguments
params |
The likelihood MLE estimators (S,p,l) in a single vector |
counts.in |
Vector of summed detections by history (names are history) |
num.period |
Number of detection periods in history |
use.hist |
Matrix of unique detection histories |
L.in |
The probability that a tag is working at a detection site at a given time. Set to 1 if active tags not indicated. p(tag working) is cumulative to each site, not a multiplicate from site to site |
d.in |
The probability a tag is censored given that it's detected |
Value
This function returns a negative log-likelihood
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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