Welcome to the
dsm is a package to model the spatial distribution of animals using data collected from a distance sampling (amongst others) survey. DSM stands for density surface model, though we often use such models to calculate abundance the name has stuck.
- Paper: Spatial models for distance sampling data: recent developments and future directions (open access!)
- Example analyses
- For how to get your data into the correct format to use with
- Problems? For advice about DSM analyses and survey methodology try the distance sampling e-mail list. If you think you've found a bug in
dsm, you can report it on github.
- (in)frequently asked questions -- record of answers to questions I have received via e-mail that may be of more general interest.
## Warning: matrix not positive definitemessages
Error in if (x0[i] == 0) 1 else x0[i] : missing value where TRUE/FALSE neededmessage when using
Getting the latest version of
CRAN only allows packages to be updated infrequently (due to them having to be checked by hand). I often make fixes more frequently (and then often forget to update the CRAN package).
To ensure you have the latest version of
dsm, install devtools:
dsm from github:
Then you have a shiny new version of
dsm on your computer.