CRAN release 1.0.9

Distance 1.0.9

• Changed the default encounter rate estimator for point transect surveys from P3 to P2. (Issue #138)
• Fixed bug which produced NA's when stratum names came after 'Total' in the alphabet. (Issue #158)
• Added additional documentation explaining the adjustment term options when covariates are in the model. (Issue #156)
• Fixed dht bootstrap to work when distbegin and distend are supplied but not distance. (Issue #147)
• Added a warning for the dht bootstrap when Sample.Label values are not unique across all strata. (Issue #157)
• Distance 1.0.9 depends on mrds >= 2.3.0 due to re-named documentation page links.

CRAN release 1.0.8

Distance 1.0.8

• Support for using MCDS.exe from Distance for Windows to run analyses. You can now download MCDS.exe using mrds::download_MCDS_dot_exe run analyses using this engine, rather (or in tandem with) the usual R optimizers provided in mrds. ds will pick the best (by likelihood) and return that. See ?ds and ?"mcds-dot-exe" for more details.

CRAN Release 0.9.7

• summarize_ds_models now will only compare models that are allowed by AIC (all binning and truncation must be the same). Thanks to Carolin Tröger and Eric Rextad for highlighting this issue.
• If there are numerical issues that cause NAs in the Hessian, ds() will not try to run dht() to estimate abundance (as it will fail), instead throws a message and returns only the detection function. Thanks to Steve Ahlswede for bringing this to our attention.

CRAN Release 0.9.6

Distance version 0.9.6

• Coefficients are called coefficients (not a mixture of coefficients and parameters) in summary() results
• Added gof_ds() for easy access to goodness of fit testing and q-q plotting
• Checking of truncation distance was checking via is.double rather than is.numeric. Thanks to Tiago Marques for spotting this!
• Functions AIC() and logLik() now exist for quick extraction of AIC and log-likelihood values. Thanks to Tiago Marques for this suggestion.
• Added amakihi (point transect) data
• add extra documentation for objects in obs.table, thanks to Olivier Devineau for spotting this

Distance version 0.9.5

• Truncation by percentage now works when there are missing distances (i.e. when we are using flatfile). Thanks to Len Thomas for pointing out this bug.

CRAN release 0.9.4

Changes from 0.9.3:

• Object ID uniqueness stopped abundance estimation from working (since NA IDs were "not unique").
• Check that areas are consistently entered. This was problematic when areas were not entered identically for each region, but unique was used to extract the region table. Thanks to Katy Echave for finding this bug!
• Monotonicity constraints were not applied during automated model selection. Thanks to Tiago Marques for spotting this.
• AIC selection of adjustment terms goes up to 5 terms by default, as in DISTANCE. Thanks to Eric Rexstad for suggesting this.

pre-CRAN release 0.9.4

Distance version 0.9.4

• Object ID uniqueness stopped abundance estimation from working (since NA IDs were "not unique").
• Check that areas are consistently entered. This was problematic when areas were not entered identically for each region, but unique was used to extract the region table. Thanks to Katy Echave for finding this bug!
• Monotonicity constraints were not applied during automated model selection. Thanks to Tiago Marques for spotting this.
• AIC selection of adjustment terms goes up to 5 terms by default, as in DISTANCE. Thanks to Eric Rexstad for suggesting this.

Distance version 0.9.3

• Updated tests to work with new unique object ID code.
• Liberally sprinkled tests with suppressMessages()

CRAN release 0.9.2

This version is updated to work with the new version of mrds 2.1.8.

.zip file is a binary package for Windows users.

CRAN release 0.9.1

Distance version 0.9.1 as on CRAN

• Models with both covariates and adjustment terms can actually be specified -- this was not fully implemented in previous version.
• ds() now tells the user the models which is returned (rather than previously fitted model)
• links to mrds documentation on optimisation issues

Distance 6.2 release

This is Distance version 0.9.

This is the version of Distance that works with mrds shipped with Distance 6.2.

The .tar.gz file should be suitable for installation on Mac/Linux systems.

The .tgz file is a binary package for Mac.

The .zip file is a binary package Windows systems.

Distance 6.2 preview release

This is the version of Distance is build against the mrds shipped with the preview version of Distance 6.2 (for Windows).

The .tar.gz file should be suitable for installation on Mac/Linux systems.

The .zip file should be suitable for installation on Windows systems.