unmarkedBirds: unmarkedBirds
In NCRN/NCRNbirds: Data analysis and visualization for NPS I&M bird monitoring.
unmarkedBirds R Documentation
unmarkedBirds
Description
Analyzes an unmarkedFrame object using methods from the unmarked package.
Usage
unmarkedBirds(object, formula = NULL, ...)
Arguments
object
An unamked frame object such as those created by makeUMF or a list of such frames.
formula
A formula for the the model. Formula indicates covariates for observation and detection in that order. i.e. ~Day ~Forest_Type Note that
this is NOT in quotes.
...
Additonal arguments passed to the relevant unmarked model fitting method.
Details
This function simplifies the process unmarked models (Royal 2004, Kery et al. 2005) to data in an NCRNbirds object or a list of such objects.
The data is preppared by first using the makeUMF function to make the proper type of unmarkedFrame. The fraame can then be fed into
unmarkedBirds for analysis. This function will automatically detect the frame type and do the corresponding analysis. If a formula is not supplied,
then all visit covariates in the unmarkedFrame will be used as detection covariates, and all site covaritates will be used as state (abundance or occupancy)
by defaults.
Value
A fitted unmaked model. Currently fits occupancy and n-mixture models.
References
Kery, M. Royle, J.A. and Schmid. 2005. Modeling avian abundance from replicated counts using binomial mixture models. Ecological Applications. 15: 1450-1461.
Royle, J. A. 2004. N-Mixture models for estimating population size from spatially replicated counts. Biometrics 60: 108-115.
NCRN/NCRNbirds documentation built on Aug. 28, 2023, 12:12 p.m.
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| unmarkedBirds | R Documentation |
unmarkedBirds
Description
Analyzes an unmarkedFrame object using methods from the unmarked package.
Usage
unmarkedBirds(object, formula = NULL, ...)
Arguments
object |
An unamked frame object such as those created by |
formula |
A formula for the the model. Formula indicates covariates for observation and detection in that order. i.e. ~Day ~Forest_Type Note that this is NOT in quotes. |
... |
Additonal arguments passed to the relevant unmarked model fitting method. |
Details
This function simplifies the process unmarked models (Royal 2004, Kery et al. 2005) to data in an NCRNbirds object or a list of such objects.
The data is preppared by first using the makeUMF function to make the proper type of unmarkedFrame. The fraame can then be fed into
unmarkedBirds for analysis. This function will automatically detect the frame type and do the corresponding analysis. If a formula is not supplied,
then all visit covariates in the unmarkedFrame will be used as detection covariates, and all site covaritates will be used as state (abundance or occupancy)
by defaults.
Value
A fitted unmaked model. Currently fits occupancy and n-mixture models.
References
Kery, M. Royle, J.A. and Schmid. 2005. Modeling avian abundance from replicated counts using binomial mixture models. Ecological Applications. 15: 1450-1461.
Royle, J. A. 2004. N-Mixture models for estimating population size from spatially replicated counts. Biometrics 60: 108-115.
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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