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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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Emeline Auda, … Eric Howe5

Apr 22

Correcting effective survey duration in camera trap survey using still images

Hi Eric, Sorry for the lack of answers on my side, as I was on long holiday and then started several

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Correcting effective survey duration in camera trap survey using still images

Hi Eric, Sorry for the lack of answers on my side, as I was on long holiday and then started several

Apr 22

Apr 19

Trial vs io configuration

Hello, To answer my own question: On our data, the trial configuration was a better fit (the mrmodel

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Trial vs io configuration

Hello, To answer my own question: On our data, the trial configuration was a better fit (the mrmodel

Apr 19

Joshua Meza-Fidalgo, Eric Rexstad3

Apr 4

Issue with Study Design in R

Eric was able to successfully help me diagnose the problem. I was trying to use kilometers as my unit

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Issue with Study Design in R

Eric was able to successfully help me diagnose the problem. I was trying to use kilometers as my unit

Apr 4

Nilanjan Basu, Eric Rexstad2

Mar 23

Inquiry about camera trap based Distance Sampling (CTDS)

Nilanjan Welcome to the group. I suggest you read Chapter 10 of the Users Guide for the Distance for

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Inquiry about camera trap based Distance Sampling (CTDS)

Nilanjan Welcome to the group. I suggest you read Chapter 10 of the Users Guide for the Distance for

Mar 23

Mar 22

Online training workshop: camera trap distance sampling, 27-31 May 2024

https://workshops.distancesampling.org/ctds-may-2024 Several methods exist for analysis of camera

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Online training workshop: camera trap distance sampling, 27-31 May 2024

https://workshops.distancesampling.org/ctds-may-2024 Several methods exist for analysis of camera

Mar 22

Lyndon Brooks, Eric Rexstad4

Mar 20

NAs are not allowed in subscripted assignments

Sorry for the poor advice Lyndon. I'll continue to investigate; afraid I've not encountered

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NAs are not allowed in subscripted assignments

Sorry for the poor advice Lyndon. I'll continue to investigate; afraid I've not encountered

Mar 20

Michelle Bustamante, Eric Rexstad2

Mar 19

Hi Help me please

Good morning Michelle If you apply the function summary(BQ.uni) you will discover that the fitted

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Hi Help me please

Good morning Michelle If you apply the function summary(BQ.uni) you will discover that the fitted

Mar 19

margaret....@gmail.com, Eric Rexstad2

Mar 14

Maggie Thanks for your question; afraid I cannot diagnose the problem at this point. By "Sample.

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Maggie Thanks for your question; afraid I cannot diagnose the problem at this point. By "Sample.

Mar 14

Erica Alex, Eric Rexstad2

Mar 10

bootdht returns blank data frame

Erica Using a pooled detection function to produce species-specific density estimates runs the risk

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bootdht returns blank data frame

Erica Using a pooled detection function to produce species-specific density estimates runs the risk

Mar 10

Niccolò Bavieri

Mar 8

Info DS Analysis

Good morning, Some questions about Distance Sampling Analyses. In my study, I have travelled many

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Info DS Analysis

Good morning, Some questions about Distance Sampling Analyses. In my study, I have travelled many

Mar 8

Colin Guilfoyle

Mar 7

Hi all, As part of a potential study comparing the results produced from the two survey methods (

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Hi all, As part of a potential study comparing the results produced from the two survey methods (

Mar 7

Libby White, Eric Rexstad4

Mar 5

Error in cat("Sample fraction :", ifelse(attr(x, "sample_fraction")

Hi Eric! Thanks for your response. That example is really helpful. Best, Libby On Tuesday, March 5,

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Error in cat("Sample fraction :", ifelse(attr(x, "sample_fraction")

Hi Eric! Thanks for your response. That example is really helpful. Best, Libby On Tuesday, March 5,

Mar 5

Iris Berger, Eric Rexstad2

Mar 1

Error when using predict() to get effective areas

Hello Iris. You've described distance sampling analysis on an industrial scale, performing

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Error when using predict() to get effective areas

Hello Iris. You've described distance sampling analysis on an industrial scale, performing

Mar 1

clac...@googlemail.com, Eric Rexstad3

Feb 27

Accessing fitted values to get P's...

Thanks Eric! I think this will work for what I need. Very much appreciated indeed Claire On Tuesday,

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Accessing fitted values to get P's...

Thanks Eric! I think this will work for what I need. Very much appreciated indeed Claire On Tuesday,

Feb 27

Camille Ollier, Eric Rexstad3

Feb 26

dht2 - individuals/clusters

Hi Eric, Thanks for your response, and I understand. I appreciate that you have submitted the issue

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dht2 - individuals/clusters

Hi Eric, Thanks for your response, and I understand. I appreciate that you have submitted the issue

Feb 26

Julia Saltzman2

Feb 20

Density Surface Models

Hi all! Sorry for another message. For some reason my attachments didn't show up in the email. I

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Density Surface Models

Hi all! Sorry for another message. For some reason my attachments didn't show up in the email. I

Feb 20

Feb 19

Request for Photo's

Dear Distance Sampling List, We are currently in the process of updating our webpages and we would

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Request for Photo's

Dear Distance Sampling List, We are currently in the process of updating our webpages and we would

Feb 19

Feb 14

Registration closing in one week; introductory distance sampling workshop 04-15Mar 2024

The introductory distance sampling workshop taking place via Zoom 04-15 March is drawing closer.

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Registration closing in one week; introductory distance sampling workshop 04-15Mar 2024

The introductory distance sampling workshop taking place via Zoom 04-15 March is drawing closer.

Feb 14

Shanti Davis, Eric Rexstad3

Feb 13

dht2 error - zero detections in one replicate

Hi Eric, Thanks for the quick reply! Yes, our detection function modelling was done for each species

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dht2 error - zero detections in one replicate

Hi Eric, Thanks for the quick reply! Yes, our detection function modelling was done for each species

Feb 13

A. Marm Kilpatrick, Eric Rexstad2

Feb 10

estimating density of multiple species at multiple sites: example code

Prof Kilpatrick Thanks for your interest and your thorough examination of our online resources. You

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estimating density of multiple species at multiple sites: example code

Prof Kilpatrick Thanks for your interest and your thorough examination of our online resources. You

Feb 10

Jacob Trowbridge

Jan 30

Distance Sampling Simulations

Hi! I've been working with distance sampling for a few years now and I just started playing

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Distance Sampling Simulations

Hi! I've been working with distance sampling for a few years now and I just started playing

Jan 30

Jan 22

Introductory distance sampling workshop; registration now open

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

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Introductory distance sampling workshop; registration now open

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

Jan 22

lea david, … Eric Rexstad9

Jan 20

p and esw for each value of covariat

Tiffany I've extended the previous function to incorporate both the half normal and hazard rate

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p and esw for each value of covariat

Tiffany I've extended the previous function to incorporate both the half normal and hazard rate

Jan 20

Jan 16

Scholarship applications now being accepted: introductory workshop 04-15 March

Introductory distance sampling workshop 04-15 March 2024. Widening participation scholarships for

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Scholarship applications now being accepted: introductory workshop 04-15 March

Introductory distance sampling workshop 04-15 March 2024. Widening participation scholarships for

Jan 16

William Halliday

Jan 15

Job Alert: New Post Doc to Study Bowhead Whales and Ice Seals Using Aerial Surveys

Hi Distance Sampling Group! I am new here, but a colleague recommended that I should post this job ad

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Job Alert: New Post Doc to Study Bowhead Whales and Ice Seals Using Aerial Surveys

Hi Distance Sampling Group! I am new here, but a colleague recommended that I should post this job ad

Jan 15

Niccolò Bavieri, Eric Rexstad2

Jan 11

Compare densities between different methods

From: Eric Rexstad <Eric.R...@st-andrews.ac.uk> Sent: 10 January 2024 17:11 To: Niccolò

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Compare densities between different methods

From: Eric Rexstad <Eric.R...@st-andrews.ac.uk> Sent: 10 January 2024 17:11 To: Niccolò

Jan 11

Alvaro G, Eric Rexstad3

Jan 9

Hi there! I'm sorry for my mistake in the message. Anyway, thank you very much for your answer.

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Hi there! I'm sorry for my mistake in the message. Anyway, thank you very much for your answer.

Jan 9

andreu...@gmail.com, … jjr...@gmail.com4

Jan 7

Same animals observed in different areas that overlaped

Hi Jason, Thanks for the information. Actually, the point transects are not very spaced. In fact, the

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Same animals observed in different areas that overlaped

Hi Jason, Thanks for the information. Actually, the point transects are not very spaced. In fact, the

Jan 7

Jan 5

mrds and Distance CRAN release

Dear Distance list, We are pleased to announce the release of `mrds 2.3.0` and `Distance 1.0.9` on

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mrds and Distance CRAN release

Dear Distance list, We are pleased to announce the release of `mrds 2.3.0` and `Distance 1.0.9` on

Jan 5

Polina Hristova, Eric Rexstad2

12/25/23

Design issue point count sampling

Polina That is quite an ambitious survey. The question about how to organise your data is tied to the

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Design issue point count sampling

Polina That is quite an ambitious survey. The question about how to organise your data is tied to the

12/25/23

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