Distance sampling analyses

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Documentation for package ‘Rdistance’ version 1.1

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Rdistance-package Rdistance - Distance and Line Transect Analyses.
AIC.dfunc AICc and related fit statistics for distance function objects
coef.dfunc Coefficients of an estimated distance function
cosine.expansion Calcululation of cosine expansion for detection function likelihoods.
distance Rdistance - Distance and Line Transect Analyses.
ESW Effective Strip Width for estimated distance functions
F.abund.estim F.abund.estim - Estimate abundance from distance data.
F.automated.CDA F.automated.CDA - Automated classical distance analysis.
F.dfunc.estim F.dfunc.estim - Estimate a distance function.
F.double.obs.prob F.double.obs.prob - Compute double observer probability of detection. No external covariates allowed.
F.gx.estim F.gx.estim - Estimate g(0) or g(x).
F.maximize.g F.maximize.g - Finds the coordinate of the maximum of a distance function.
F.nLL F.nLL - Return the negative log likelihood for a set of distance values.
F.start.limits F.start.limits - Set starting values and limits for parameters of Rdistance functions.
Gamma.like Gamma likelihood for distance analyses
halfnorm.like Standard likelihood functions for distance analyses.
hazrate.like Standard likelihood functions for distance analyses.
hermite.expansion Calcululation of Hermite expansion for detection function likelihoods.
integration.constant Compute the integration constance for distance density functions.
negexp.like Standard likelihood functions for distance analyses.
plot.dfunc Plot a distance function.
print.abund Print abundance estimates.
print.dfunc Print a distance function object.
Rdistance Rdistance - Distance and Line Transect Analyses.
simple.expansion Calculate simply polynomial expansion for detection function likelihoods.
uniform.like Standard likelihood functions for distance analyses.