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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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Deepti Gupta, Eric Rexstad2

2:22 AM

sample.dat file showing error in reopening

Deepti We have had another report of this problem. Can you provide more details: what version of

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sample.dat file showing error in reopening

Deepti We have had another report of this problem. Can you provide more details: what version of

2:22 AM

carl....@gmail.com, Eric Rexstad3

Nov 7

Density as calculated by expected or average cluster size: Distance in Windows vs Distance in R

Dear Eric Good to hear from you. Yes, thank you, this has resolved my query. I understand the

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Density as calculated by expected or average cluster size: Distance in Windows vs Distance in R

Dear Eric Good to hear from you. Yes, thank you, this has resolved my query. I understand the

Nov 7

Lisa Marie Leclerc, Eric Rexstad2

Nov 6

Lisa The mark-recapture component of the MRDS modelling is a logistic regression fitted to the

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Lisa The mark-recapture component of the MRDS modelling is a logistic regression fitted to the

Nov 6

Nov 4

New CRAN release of mrds and Distance R packages

Dear Distance list, We are pleased to announce the release of mrds version 3.0.0 and Distance version

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New CRAN release of mrds and Distance R packages

Dear Distance list, We are pleased to announce the release of mrds version 3.0.0 and Distance version

Nov 4

Charlotte Ward, Eric Rexstad3

Oct 31

Dealing with NA observations and binned analyses

Hi Eric, Thank you so much for the very quick response. Good to hear I was thinking correctly, and

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Dealing with NA observations and binned analyses

Hi Eric, Thank you so much for the very quick response. Good to hear I was thinking correctly, and

Oct 31

elena jimenez, Eric Rexstad3

Oct 30

Warning: Unknown or uninitialised column: `distbegin`.

Thank you, Eric, for your quick response; it worked perfectly! El martes, 29 de octubre de 2024 a las

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Warning: Unknown or uninitialised column: `distbegin`.

Thank you, Eric, for your quick response; it worked perfectly! El martes, 29 de octubre de 2024 a las

Oct 30

Brendan Higgins, Eric Rexstad4

Oct 26

How does the dsm function link the ddf.obj and the observation data?

I believe so Brendan From: Brendan Higgins <bhig...@alaska.edu> Sent: 25 October 2024 21:54

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How does the dsm function link the ddf.obj and the observation data?

I believe so Brendan From: Brendan Higgins <bhig...@alaska.edu> Sent: 25 October 2024 21:54

Oct 26

Valeria Serafini, Eric Rexstad3

Oct 26

Assistance with DSM Data Formatting for Curved Transects

Thank you for the clarification. On Fri, Oct 25, 2024 at 7:02 PM Eric Rexstad <Eric.Rexstad@st-

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Assistance with DSM Data Formatting for Curved Transects

Thank you for the clarification. On Fri, Oct 25, 2024 at 7:02 PM Eric Rexstad <Eric.Rexstad@st-

Oct 26

Alvaro G, Eric Rexstad7

Oct 23

number of iindividuals in each detection

Thanks so much Eric for your kind advice! It'll improve my skill on Distance, I'm still

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number of iindividuals in each detection

Thanks so much Eric for your kind advice! It'll improve my skill on Distance, I'm still

Oct 23

Colin Guilfoyle, Eric Rexstad4

Oct 17

Transect effort / blank observations

Colin That depends whether you are recording "visit" in your data frame. If so, then you

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Transect effort / blank observations

Colin That depends whether you are recording "visit" in your data frame. If so, then you

Oct 17

ca...@kauaiforestbirds.org, … Rebecca MacArthur23

Oct 13

how to analyze repeated point counts in Distance

Brilliant, I can't thank you enough for all of your help. Kindest regards, Rebecca On Thu, Oct 10

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how to analyze repeated point counts in Distance

Brilliant, I can't thank you enough for all of your help. Kindest regards, Rebecca On Thu, Oct 10

Oct 13

DEFOS DU RAU Pierre, Phil Bouchet2

Oct 3

Hi Pierre, Can you try installing rgdal from RForge using the below command? install.packages("

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Hi Pierre, Can you try installing rgdal from RForge using the below command? install.packages("

Oct 3

lea david, … Thomas Webber14

Oct 1

p and esw for each value of covariat

Hi Eric, Thanks very much for the advice. I'll see how I get on. Much apprecited. Thomas On

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p and esw for each value of covariat

Hi Eric, Thanks very much for the advice. I'll see how I get on. Much apprecited. Thomas On

Oct 1

Bastien Dehaudt, Eric Rexstad6

Oct 1

Trail transect distance analysis

Bastien Have a look at this paper Oedekoven, CS, Laake, JL & Skaug, HJ Distance sampling with a

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Trail transect distance analysis

Bastien Have a look at this paper Oedekoven, CS, Laake, JL & Skaug, HJ Distance sampling with a

Oct 1

Oct 1

effort misunderstanding

To add another question for the same R script (above was talking about input file for ds), for my

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effort misunderstanding

To add another question for the same R script (above was talking about input file for ds), for my

Oct 1

Isha Shyam, Eric Rexstad2

Sep 30

DSM: 2D X,Y smooths

Isha If extrapolation is of concern to you, I suggest you investigate the dsmextra package https://

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DSM: 2D X,Y smooths

Isha If extrapolation is of concern to you, I suggest you investigate the dsmextra package https://

Sep 30

shimada yasu, Eric Rexstad4

Sep 30

<Q> Data format by transect line in a region

Dear Eric_san Thank you very much. I didn't know that! Thanks for pointing out my mistake. I just

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<Q> Data format by transect line in a region

Dear Eric_san Thank you very much. I didn't know that! Thanks for pointing out my mistake. I just

Sep 30

Nilanjan Basu, Eric Rexstad5

Sep 27

Can data across the years be clumped for analysis

This is great, thank you so much! Dr. Rexstad. Nilanjan Basu Research Consultant Hyderabad Tiger

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Can data across the years be clumped for analysis

This is great, thank you so much! Dr. Rexstad. Nilanjan Basu Research Consultant Hyderabad Tiger

Sep 27

shimada yasu, Eric Rexstad5

Sep 27

<Q> data format 'NA" or zero

Hi Eric_san Thank you very much for the useful information. When the R data is NA, the data read by

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<Q> data format 'NA" or zero

Hi Eric_san Thank you very much for the useful information. When the R data is NA, the data read by

Sep 27

Sudip, Eric Rexstad2

Sep 23

Regarding camera trap distance sampling analysis

Sudip Thanks for your question. There could be several causes for the large uncertainty in you

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Regarding camera trap distance sampling analysis

Sudip Thanks for your question. There could be several causes for the large uncertainty in you

Sep 23

Manuel Spínola, Eric Rexstad5

Sep 19

Repeated surveys of line transects in R package Distance

Thank you very much Eric. Manuel El jue, 19 sept 2024 a las 8:06, Eric Rexstad (<Eric.Rexstad@st-

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Repeated surveys of line transects in R package Distance

Thank you very much Eric. Manuel El jue, 19 sept 2024 a las 8:06, Eric Rexstad (<Eric.Rexstad@st-

Sep 19

jspa...@hotmail.com, Eric Rexstad4

Sep 16

Help with DS submodel in MRDS

Jess Glad you found your difficulties with VegClass. Also good you are double-checking the output

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Help with DS submodel in MRDS

Jess Glad you found your difficulties with VegClass. Also good you are double-checking the output

Sep 16

Isha Bopardikar2

Sep 16

Calculating effort for annual density estimates

Hi all, Copied below are Eric's comments and suggestions for this analysis and my question If you

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Calculating effort for annual density estimates

Hi all, Copied below are Eric's comments and suggestions for this analysis and my question If you

Sep 16

Henry Gage, Eric Rexstad2

Sep 13

Road-based distance sampling transects

Henry Welcome to the list. As you note, surveys restricted to roads induce bias in your estimates.

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Road-based distance sampling transects

Henry Welcome to the list. As you note, surveys restricted to roads induce bias in your estimates.

Sep 13

Alex Nankivell, … Isha Bopardikar3

Sep 13

Hello, I had a question based on this analysis. I have surveys from 2020-2023 and wanted to get

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Hello, I had a question based on this analysis. I have surveys from 2020-2023 and wanted to get

Sep 13

Luke Vander Vennen, Eric Rexstad4

Sep 7

Error when fitting basic models

Luke Thanks for troubleshooting your issue. I didn't know about a conflict with the formula.tools

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Error when fitting basic models

Luke Thanks for troubleshooting your issue. I didn't know about a conflict with the formula.tools

Sep 7

Samundra Subba, … Stephen Buckland7

Sep 3

How to correct field compass bearing mistakes? A quick query

I'm not sure there is much of an issue here. The histogram suggests some avoidance in the first

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How to correct field compass bearing mistakes? A quick query

I'm not sure there is much of an issue here. The histogram suggests some avoidance in the first

Sep 3

Mohammad Fajrin Ramadhon, Eric Rexstad2

Aug 28

Distance sampling and photo identification methods

Rama I do not know of any published work integrating photo-id data into a distance sampling (MRDS)

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Distance sampling and photo identification methods

Rama I do not know of any published work integrating photo-id data into a distance sampling (MRDS)

Aug 28

Eric Rexstad, ABRAHAM EUSTACE3

Aug 23

Introductory distance sampling workshop October 2024 fully booked

Abraham All our training workshops have been online for roughly the past five years. The introductory

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Introductory distance sampling workshop October 2024 fully booked

Abraham All our training workshops have been online for roughly the past five years. The introductory

Aug 23

Kat Bernier, Eric Rexstad2

Aug 19

DSM data file structure + pantropical dolphins (dsm example analysis) package dependencies archived

Kat Thanks for doing such thorough homework prior to sending your questions to the list. That is why

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DSM data file structure + pantropical dolphins (dsm example analysis) package dependencies archived

Kat Thanks for doing such thorough homework prior to sending your questions to the list. That is why

Aug 19

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