| residuals,ubmsFit-method {ubms} | R Documentation |
Extract Model Residuals
Description
Extract residuals for a given submodel from a ubmsFit object.
Residuals are calculated separately for each submodel
using the posterior predictive distribution of the latent state z,
following Wright et al. (2019).
Usage
## S4 method for signature 'ubmsFit'
residuals(object, submodel, draws = NULL, ...)
Arguments
object |
A fitted model of class |
submodel |
Submodel to get residuals for, for example |
draws |
An integer indicating the number of draws to return. The default and maximum number of draws is the size of the posterior sample. |
... |
Currently ignored |
Value
A matrix of residual values with dimension draws by
observations. Note that calculation of residuals
for the detection submodel is conditional on z > 0, so residuals
for an observation in a posterior draw where z = 0 are assigned
value NA (Wright et al. 2019).
References
Wright, W. J., Irvine, K. M., & Higgs, M. D. (2019). Identifying occupancy model inadequacies: can residuals separately assess detection and presence? Ecology, 100(6), e02703.