Learn R Programming

DSsim (version 1.1.4)

Distance Sampling Simulations

Description

Performs distance sampling simulations.It repeatedly generates instances of a user defined population within a given survey region, generates realisations of a survey design (currently these must be generated using Distance software in advance ) and simulates the detection process. The data are then analysed so that the results can be compared for accuracy and precision across all replications. This will allow users to select survey designs which will give them the best accuracy and precision given their expectations about population distribution. Any uncertainty in population distribution or population parameters can be included by running the different survey designs for a number of different population descriptions. An example simulation can be found in the help file for make.simulation.

Copy Link

Version

Install

install.packages('DSsim')

Monthly Downloads

207

Version

1.1.4

License

GPL (>= 2)

Maintainer

Last Published

February 13th, 2019

Functions in DSsim (1.1.4)

histogram.N.ests

histogram.N.ests
description.summary

Provides a description of the summary object/output Prints a list of the terms used in the simulation summary.
save.sim.results

save.sim.results
data.for.distance

data.for.distance
get.distance.data

S4 generic method to extract distance data
Simulation.Summary-class

Class "Simulation.Summary"
Region.Table-class

S4 Class "Region.Table"
Sample.Table-class

Class "Sample.Table"
Region-class

Class "Region"
Single.Obs.DDF.Data-class

S4 Class "Single.Obs.DDF.Data"
show,Simulation-method

show
Population.Description-class

Class "Population.Description"
Survey.Design-class

S4 Class "Survey.Design"
Survey-class

Virtual Class "Survey"
param.list

Parameter Estimates from Covariate Simulation
create.sample.table

S4 generic method to generate a sample table
covmod.summary.list

Covariate Truncation Simulation Summaries
Simulation-class

Class "Simulation"
Population-class

Class "Population"
Point.Transect-class

S4 Class "Point.Transect"
add.hotspot

S4 generic method to add a hotspot to the density grid
create.survey.results

S4 generic method to simulate a survey
plot,LT.Survey.Results,ANY-method

Plot
Population.Summary-class

S4 Class "Population.Summary"
Single.Obs.LT.Survey-class

Class "Single.Obs.LT.Survey"
Single.Obs.PT.Survey-class

Class "Single.Obs.PT.Survey"
Survey.Results-class

S4 Class "Survey.Results"
PT.Survey-class

Virtual Class "PT.Survey" extends class "Survey"
Obs.Table-class

Class "Obs.Table"
PT.Design-class

Virtual Class "PT.Design" extends Class "Survey.Design"
create.bins

Create bins from a set of binned distances and a set of cutpoints.
plot,Line.Transect,ANY-method

Plot
make.ddf.analysis.list

Creates a list of DDF.Analysis objects
create.region.table

S4 generic method to generate a region table
Transect-class

S4 Virtual Class "Transect"
make.design

Creates a Survey.Design object
make.detectability

Creates a Detectablility object
generate.population

S4 generic method to generate an instance of a population
check.sim.setup

check.sim.setup
make.population.description

Creates a Population.Description object
make.density

Creates a Density object
plot,DDF.Data,ANY-method

Plot
make.region

Creates a Region object
run.analysis

S4 generic method to run analyses
make.simulation

Creates a Simulation object
run

S4 generic method to run a simulation
generate.transects

S4 generic method to generate an instance of a design
plot,Point.Transect,ANY-method

Plot
plot,Population,ANY-method

Plot
transects.shp

Shapefile describing the transects
get.N

S4 generic method to return N
plot,Density,ANY-method

Plot
cov.summary.list

Covariate Truncation Simulation Summaries
get.area

Returns the area of the region
plot,Region,ANY-method

Plot
plot,Detectability,ANY-method

Plot
rename.duplicates

Renumbers the object IDs for the duplicate observations generated when bootstrapping
plot,Survey.Results,ANY-method

Plot
show,Design.Summary-method

show
summary,Simulation-method

summary
rtpois

Randomly generates values from a zero-truncated Poisson distribution
summary.list

Truncation Simulation Summaries
DDF.Analysis-class

Class "DDF.Analysis"
Design.Summary-class

S4 Class "Design.Summary"
DDF.Data-class

S4 Class "DDF.Data"
Density-class

Class "Density"
LT.Design-class

Virtual Class "LT.Design" extends Class "Survey.Design"
Detectability-class

S4 Class "Detectability"
Line.Transect-class

S4 Class "Line.Transect"
LT.Survey-class

Virtual Class "LT.Survey" extends class "Survey"
LT.Survey.Results-class

S4 Class "LT.Survey.Results"