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Welcome to the distance sampling e-mail list.

This is a place to ask questions about distance sampling methodology as well as software.

More information on distance sampling can be found at http://distancesampling.org

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Moriah Tanguay, Eric Rexstad3

Mar 26

How to specify the proportion of the transect covered as a data.frame with 2 columns

Hi Eric, Thanks very much for the quick reply! Your solution solved the problem. Good to know this is

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How to specify the proportion of the transect covered as a data.frame with 2 columns

Hi Eric, Thanks very much for the quick reply! Your solution solved the problem. Good to know this is

Mar 26

Fiama Peña Lodis, Eric Rexstad5

Mar 23

"Challenges in Detection Function Fitting and Segment Width Adjustment for DSM Modeling

Fiama There is not much more I can add to my previous email. You have few detections and few segments

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"Challenges in Detection Function Fitting and Segment Width Adjustment for DSM Modeling

Fiama There is not much more I can add to my previous email. You have few detections and few segments

Mar 23

Eric Rexstad, John Willoughby2

Mar 19

Introductory distance sampling workshop and experience with R

There's a free 6-hr pre-recorded class by Mark Andrews in how to use R and RStudio that might be

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Introductory distance sampling workshop and experience with R

There's a free 6-hr pre-recorded class by Mark Andrews in how to use R and RStudio that might be

Mar 19

Jason Roberts, … Eric Rexstad13

Mar 17

Gamma function instead of left truncation for a single-team line transect survey?

yes Jason, that causes the model to behave much better without the adjustment. I see I need to create

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Gamma function instead of left truncation for a single-team line transect survey?

yes Jason, that causes the model to behave much better without the adjustment. I see I need to create

Mar 17

Mar 17

Registration open: 05-16 May introductory workshop; participation scholarships deadline 24 March

Interactive introductory distance sampling training The University of St Andrews has been training

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Registration open: 05-16 May introductory workshop; participation scholarships deadline 24 March

Interactive introductory distance sampling training The University of St Andrews has been training

Mar 17

Jason Roberts, … Arnaud Mosnier7

Mar 14

Covariates and adjustment terms in the same detection function?

Thanks Eric for the archaelogical research and the example ! Much appreciated. Arnaud Le vendredi 14

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Covariates and adjustment terms in the same detection function?

Thanks Eric for the archaelogical research and the example ! Much appreciated. Arnaud Le vendredi 14

Mar 14

Mar 14

Analysis of Animal Movement Data

Dear all, The upcoming Physalia online Analysis of Animal Movement Data in R course (24-28 March) is

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Analysis of Animal Movement Data

Dear all, The upcoming Physalia online Analysis of Animal Movement Data in R course (24-28 March) is

Mar 14

Nilanjan Basu, … Eric Rexstad9

Mar 11

Queries about CTDS analysis

Thank you, Dr. Howe and Dr. Rexstad, for the valuable information. I also didn't find a

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Queries about CTDS analysis

Thank you, Dr. Howe and Dr. Rexstad, for the valuable information. I also didn't find a

Mar 11

Vijay Ramesh, Eric Rexstad3

Mar 8

Very high UCL values - point count analysis of densities

Hello, A huge thanks to Eric for responding to my questions. I am appending the solution that we

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Very high UCL values - point count analysis of densities

Hello, A huge thanks to Eric for responding to my questions. I am appending the solution that we

Mar 8

Annika Dean, … Len Thomas5

Mar 3

Density Surface Modelling

Thanks for pointing this out Annika - we'll get it sorted. Len On 03/03/2025 19:15, leob...@gmail

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Density Surface Modelling

Thanks for pointing this out Annika - we'll get it sorted. Len On 03/03/2025 19:15, leob...@gmail

Mar 3

Deepti Gupta, Eric Rexstad2

Feb 17

Regarding model selection in CDS

Deepi Each time you change the truncation distance (which I see you have done with your analyses),

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Regarding model selection in CDS

Deepi Each time you change the truncation distance (which I see you have done with your analyses),

Feb 17

elena jimenez, Eric Rexstad2

Feb 11

Group size "outlier" values

Greetings Elena I don't think it is useful to think of some of your detections as "outliers

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Group size "outlier" values

Greetings Elena I don't think it is useful to think of some of your detections as "outliers

Feb 11

Sabi, Eric Rexstad6

Feb 5

Help with dht() Function – “invalid argument type” Error

Thank you so much dear Eric for prompt response with the solution. My issue was caused by column

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Help with dht() Function – “invalid argument type” Error

Thank you so much dear Eric for prompt response with the solution. My issue was caused by column

Feb 5

Christian, Eric Rexstad5

Jan 24

read only .dat folder issue

Hi Eric, Thanks for that. Just to note here for any others with this issue. I was able to copy these

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read only .dat folder issue

Hi Eric, Thanks for that. Just to note here for any others with this issue. I was able to copy these

Jan 24

Jan 14

One space remaining for introductory distance sampling workshop 17-28 Feb 2025

Distance group: At the time of this email (0845 14Jan25 UK time), I believe there is one place

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One space remaining for introductory distance sampling workshop 17-28 Feb 2025

Distance group: At the time of this email (0845 14Jan25 UK time), I believe there is one place

Jan 14

Asier Rodríguez Larrinaga, Eric Rexstad3

Jan 13

File Encoding when importing data

Thanks a lot for responding, Eric. I'll send you an example dataset off-list. Best regards, Asier

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File Encoding when importing data

Thanks a lot for responding, Eric. I'll send you an example dataset off-list. Best regards, Asier

Jan 13

Eric Enrique Flores De Gracia, Eric Rexstad4

Jan 6

How to calculate the CI of P_a

Pleased to know you achieved your desired result, Eric. From: distance...@googlegroups.com <

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How to calculate the CI of P_a

Pleased to know you achieved your desired result, Eric. From: distance...@googlegroups.com <

Jan 6

Len Thomas, … Eric Rexstad3

12/23/24

New Distance Software, Training and Web sites

Pierre Best of the new year to you as well. The adjusted-angle zigzag design in Distance for Windows

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New Distance Software, Training and Web sites

Pierre Best of the new year to you as well. The adjusted-angle zigzag design in Distance for Windows

12/23/24

Kat Bernier, Eric Rexstad4

12/19/24

DSM and "weights" argument

Kat: Using density as a response in density surface modelling is uncommon; I can't think of an

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DSM and "weights" argument

Kat: Using density as a response in density surface modelling is uncommon; I can't think of an

12/19/24

Caroline Sauvé, Len Thomas2

12/17/24

estimating p0 by mark-recapture using gamma key function

Hi Caroline, I assume this is line transect aerial survey data, hence the dip in detections at

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estimating p0 by mark-recapture using gamma key function

Hi Caroline, I assume this is line transect aerial survey data, hence the dip in detections at

12/17/24

Arrow Myers, Eric Rexstad3

12/12/24

Error in covariate modeling functions in R package Distance

Dr. Rextad, Thanks so much for looking into the issue, the fix appears to be working throughout my

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Error in covariate modeling functions in R package Distance

Dr. Rextad, Thanks so much for looking into the issue, the fix appears to be working throughout my

12/12/24

12/11/24

Online Workshop: Distance sampling design and simulation

Dear Distance Sampling list, We are pleased to announce that registration is now open for the

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Online Workshop: Distance sampling design and simulation

Dear Distance Sampling list, We are pleased to announce that registration is now open for the

12/11/24

12/9/24

Registration open for introductory distance sampling workshop 17-28 February 2025

Happy Monday, distance samplers Before the events of the end of the calendar year overtake you,

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Registration open for introductory distance sampling workshop 17-28 February 2025

Happy Monday, distance samplers Before the events of the end of the calendar year overtake you,

12/9/24

Libby White, Eric Rexstad4

12/4/24

Incorporating numerous multipliers in dht2

Libby I'd let the "multiplier" handle the temporal availability issue, and lump

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Incorporating numerous multipliers in dht2

Libby I'd let the "multiplier" handle the temporal availability issue, and lump

12/4/24

Lucy Millington, Eric Rexstad4

12/2/24

** Warning: Invalid or missing covariate. **

Lucy I'm somewhat more confused from your second message. I presume you are fitting a half-normal

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** Warning: Invalid or missing covariate. **

Lucy I'm somewhat more confused from your second message. I presume you are fitting a half-normal

12/2/24

Leonard Hambrecht, Eric Rexstad5

11/27/24

Help need for simulated extrapolation approach

Hey Eric, I really appreciate you spending the time going through my code and getting it to work. I

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Help need for simulated extrapolation approach

Hey Eric, I really appreciate you spending the time going through my code and getting it to work. I

11/27/24

Océane Beaufort, … Len Thomas4

11/21/24

Stuck on geolocation data format issue

Just to augment what Eric said: Distance for Windows can also deal with data in latitude and

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Stuck on geolocation data format issue

Just to augment what Eric said: Distance for Windows can also deal with data in latitude and

11/21/24

11/21/24

Registration now open: introductory distance sampling workshop February 2025

Interactive introductory distance sampling training The University of St Andrews has been training

unread,

Registration now open: introductory distance sampling workshop February 2025

Interactive introductory distance sampling training The University of St Andrews has been training

11/21/24

nicoline nørgaard, Eric Rexstad7

11/21/24

Hi Eric, Thank you very much for clarifying this and thank you for the quick response time. //

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Hi Eric, Thank you very much for clarifying this and thank you for the quick response time. //

11/21/24

11/20/24

Widening participation scholarship window now open, closes 29 November

Applications are now being accepted for a place in the introductory distance sampling workshop taking

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Widening participation scholarship window now open, closes 29 November

Applications are now being accepted for a place in the introductory distance sampling workshop taking

11/20/24