NDest: Estimates density and abundance.
In david-borchers/hmltm: Line transect estimation with hidden Markov availability models
NDest R Documentation
Estimates density and abundance.
Description
Horvitz-Thompson like estimation of density and abundance of groups and of individuals, as well as
of group size (estimated as the ratio of individual density and group density estimates). Produces
estimates by stratum and over all strata.
This version allows specification of strata to be used for density and abundance estimation
Usage
NDest(dat, hmltm.fit, W, Dstrat = Dstrat, survey.pars)
Arguments
dat
MRDS data frame. Must have cols "stratum","area","transect","L","size","object","x","y"
(and possibly others).
hmltm.fit
output from fit.hmltm.
W
perpendicular truncation distance for estimation.
survey.pars
hmltm survey.pars object (a list)
david-borchers/hmltm documentation built on Oct. 29, 2023, 9:07 p.m.
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| NDest | R Documentation |
Estimates density and abundance.
Description
Horvitz-Thompson like estimation of density and abundance of groups and of individuals, as well as of group size (estimated as the ratio of individual density and group density estimates). Produces estimates by stratum and over all strata. This version allows specification of strata to be used for density and abundance estimation
Usage
NDest(dat, hmltm.fit, W, Dstrat = Dstrat, survey.pars)
Arguments
dat |
MRDS data frame. Must have cols "stratum","area","transect","L","size","object","x","y" (and possibly others). |
hmltm.fit |
output from |
W |
perpendicular truncation distance for estimation. |
survey.pars |
hmltm survey.pars object (a list) |
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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