News

Release of Distance 7.5

07 September 2022

We are pleased to announce the release of a new version of Distance for Windows, Distance 7.5. This version upgrades to use 64 bit R and also contains new versions of our R packages which are also now on CRAN.


Upcoming Workshops

16 August 2022

– title: Distance workshops autumn 2022 layout: post excerpt_separator: author: Len Thomas —


Distance for Windows and R 4.2

06 June 2022

This message is relevant for users of Distance for Windows who make use of the analysis engines that call R - that is the MRDS, DSM and MA analysis engines. Distance for Windows currently is not compatible with the latest version of R (4.2); we suggest a workaround and announce that we will be releasing a new version of Distance for Windows in August.


New Release of Distance 7.4

25 May 2022

We announce the release of Distance 7.4 release 2. This unplanned interim release was deemed necessary to fix a bug relating to project creation of analyses involving cluster size and / or double observer data. We advise users to update Distance to this latest version, especially if Distance 7.4 release 1 has already been installed.


Bug and workaround for Distance 7.4

23 May 2022

This bug affects you if you are

  • starting a new Distance project and either
    • animals occur in groups (group size is one of your data fields) or
    • you have double observer data with the fields object, observer and detected

Never fear, there is a simple work around


New versions of R packages

17 March 2022

We are pleased to announce the release of new versions of our R packages Distance, mrds, dsm and dsims. We recommend all users of these packages update to the newest versions.


Release of Distance 7.4

16 February 2022

We are pleased to announce the release of a new version of Distance for Windows, Distance 7.4. This version features some enhancements to facilitate the analysis of camera trap distance sampling (CTDS) data.


Introductory workshop 11-22 April 2022

14 February 2022

The University of St Andrews has been training ecologists and statisticians in design and analysis of distance sampling studies for decades. Perhaps you’ve wanted to attend but scheduling of workshops conflicted with your field work. 👨‍🌾


Widening participation scholarship applications being accepted for April 2022 introductory workshop

03 February 2022

The introductory distance sampling training workshop will be offered 11-22 April 2022 via video conferencing (1500-1730UK time). Widening participation scholarship application deadline is 11 February 2022.


Further optimisation improvement details

01 August 2021

The newest version of our R package mrds (2.2.5), used for fitting detection functions by Distance, has some improvements to its optimisation system. Here are some more details of recent changes and what you might need to watch out for.


mrds 2.2.5 and Distance 1.0.3

08 July 2021

R packages mrds 2.2.5 and Distance 1.0.3 are now on CRAN.


Introductory workshop 20Sept - 01Oct 2021

29 June 2021

The University of St Andrews has been training ecologists and statisticians in design and analysis of distance sampling studies for decades. Perhaps you’ve wanted to attend but scheduling of workshops conflicted with your field work. 👨‍🌾


Introductory workshop registration open

01 February 2021

Introductory workshop, April 2021, registration open.


Examples page updated

20 January 2021

Our examples website has been updated to be easier to use.


Practical design and simulation to optimise distance sampling surveys, March 2021

15 December 2020

The online course “Practical design and simulation to optimise distance sampling surveys” will run 15-17 March 2021.


Spatially explicit models for distance sampling data, March 2021

14 December 2020

The online course “Spatially explicit models for distance sampling data” will run 8-12 March 2021.


Preview of distance sampling training workshops for 2021

30 November 2020

We are planning to offer a selection of introductory and more advanced/specialised workshops in 2021, via video conference. The first, on methods for when animals are missed at zero distance, will be on January 11-12, and registration is currently open.


Pairwise differences in density estimates

24 October 2020

Often ecological questions extend beyond simply wanting an estimate of density in a study region. It is common for inference to extend to differences in density over time or space. A function to assess the significance of differences in density estimates exists in our examples library.


mrds 2.2.3 and Distance 1.0.1 now on CRAN

03 August 2020

New versions of the Distance and mrds R packages are now available on CRAN. Thanks to all those who have taken the time to contact us and help out by reporting unusual behaviour or requesting features.


Remote distance sampling workshops August - Oct 2020

23 July 2020

In August, September and October of 2020, we will be continuing our remote delivery of interactive distance sampling training workshops, with the following four workshops:

  • mark-recapture distance sampling - 25th and 25th August (early evening UK time)
  • introductory distance sampling - 7th - 18th September (early evening UK time)
  • introductory distance sampling - 21st September - 2nd October (morning UK time)
  • spatial modelling of distance sampling data - 5th - 9th October (early evening UK time)

For more information, please see the CREEM workshop webpages.


Distance 7.3 Release 2

07 July 2020

We are pleased to announce an update to our Distance for Windows software: Distance 7.3 Release 2. The new release updates the R packages used by the MRDS, DSM and MA analysis engines, and the simulation engine, with bug fixes and compatibility with R 4.0. If you use any of these engines, we recommend you download the new release.


Remote distance sampling workshop additions

20 May 2020

Consistent with social distancing and travel restrictions, we will be offering our distance sampling training workshops remotely. Details of some offerings are still being finalised, but as of this date, here are our forthcoming offerings:


mrds 2.2.2 now on CRAN

15 May 2020

We’ve just uploaded mrds version 2.2.2 onto CRAN and it should now be available for all platforms. These changes impact both mrds and Distance users.


Distance sampling software development plans

27 April 2020

This post provides an insight into our plans for development of both Windows and R-based software over the next few years.


Remote distance sampling workshop offerings

04 April 2020

Consistent with social distancing and travel restrictions, we will be offering our distance sampling training workshops remotely. Details of some offerings are still being finalised, but as of this date, here are our forthcoming offerings:


2020 workshops update

25 March 2020

As a result of the coronavirus (COVID-19) outbreak registration for the August Distance Workshops in St Andrews has been suspended. We’ll provide a more detailed update by 3rd April.


Additional example analyses

10 March 2020

Two situations where covariates provide the best solution to difficult analytical situations


Updates to two R packages and our website

04 February 2020

The Distance Development software group has been busy


Distance sampling training workshops for 2020

21 January 2020

Our 2020 training workshops will take place in St Andrews 17-28 August.


Distance sampling at the World Marine Mammal Conference

18 December 2019

There was a special session at the WMMC on distance sampling. Slides are available here.