Distance Sampling Simulations.

dsims

Distance Sampling Simulations

dsims is a package for simulating distance sampling surveys to allow users to optimise survey design for studies with particular properties.

Using dsims

There is currently one vignette within the dsims package to help you get started using dsims:

• GettingStarted: "Getting Started with dsims"

Getting dsims

We typically aim to keep dsims on CRAN, so it can be readily installed from within R-Studio or the R interface. However, at present there is an issue with our package dssd on which dsims relies (see issue in dssd ) that prevents this. Therefore to obtain dsims at present, please use the following code.

  # First, ensure you have a copy of the devtools package
  if (!nzchar(system.file(package = "devtools"))) install.packages("devtools")
  # then ensure you have a copy of the dssd package:
  if (!nzchar(system.file(package = "dssd"))) devtools::install_github("DistanceDevelopment/dssd", build_vignettes = TRUE)
  # finally install dsims from github:
  devtools::install_github("DistanceDevelopment/dsims", build_vignettes = TRUE)

Troubleshooting tip

During installation of packages, you may get the message "These packages have more recent versions available. It is recommended to update all of them. Which would you like to update?" and then a list of packages. We recommend you typically choose the option "CRAN packages only". Note you may then get the message that some packages cannot be installed because they are already loaded. In this case, a solution may be to note which packages these are, to open an R console (rather than R Studio) and to use the Packages | Update packages menu option (or the update.packages function) to update these packages.