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This group is open to all questions and problems concerning the R package camtrapR for camera trap data management.
When reporting a problem, please:
confirm the error exists in the current GitHub version
include the code you used and the error messages
include output of sessionInfo()
ideally share sample data and code to reproduce the error
Some useful links:
CRAN page
(vignettes are here)
Article in
Methods Ecol. Evol.
GitHub pages (documentation)
GitHub (source code)
Thank you very much for using camtrapR!
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Arief Budiman
,
Juergen Niedballa
2
12/18/25
# A Small Shiny App Built with camtrapR – Feedback Welcome
Hi Arief, Thank you so much for sharing this! It is great to see tools being built around camtrapR to
unread,
# A Small Shiny App Built with camtrapR – Feedback Welcome
Hi Arief, Thank you so much for sharing this! It is great to see tools being built around camtrapR to
12/18/25
Jay White
, …
Jürgen Niedballa
9
11/7/25
surveyReport not generating zip folder
I'm sorry for your trouble with this. Recently I discovered a small bug that may be related to
unread,
surveyReport not generating zip folder
I'm sorry for your trouble with this. Recently I discovered a small bug that may be related to
11/7/25
Ian Barbe
,
Jürgen Niedballa
2
11/7/25
Question about applying minDeltaTime by group size
Hello and apologies for the late reply. This is already possible. In recordTable, see the function
unread,
Question about applying minDeltaTime by group size
Hello and apologies for the late reply. This is already possible. In recordTable, see the function
11/7/25
Unai Ormazabal
,
Juergen Niedballa
3
10/28/25
WAIC and/or LOO for JAGS supported MSOM
Hi Juergen: First of all sorry for the late reply. Thank you very much for responding and for
unread,
WAIC and/or LOO for JAGS supported MSOM
Hi Juergen: First of all sorry for the late reply. Thank you very much for responding and for
10/28/25
D dpzzp
,
Juergen Niedballa
5
10/3/25
working with CSV and no photos
Thanks a lot, I´m trying to put the record table throw activity based on the example but it seems to
unread,
working with CSV and no photos
Thanks a lot, I´m trying to put the record table throw activity based on the example but it seems to
10/3/25
D dpzzp
,
Jürgen Niedballa
2
9/13/25
Working with CSV and no photos
Hello, yes, you can absolutely work with csvs only in camtrapR and don't need image files. You
unread,
Working with CSV and no photos
Hello, yes, you can absolutely work with csvs only in camtrapR and don't need image files. You
9/13/25
Juergen Niedballa
9/4/25
camtrapR 2.3.1 on CRAN
Dear camtrapR users, Version 2.3.1 is now available on CRAN. This maintenance release ensures
unread,
camtrapR 2.3.1 on CRAN
Dear camtrapR users, Version 2.3.1 is now available on CRAN. This maintenance release ensures
9/4/25
stefano...@gmail.com
,
Juergen Niedballa
3
8/5/25
surveyReport and Detection Histories are not using the same rules?
Hi Jurgen, sorry for being late on this. Please find below a reproducible example showing the
unread,
surveyReport and Detection Histories are not using the same rules?
Hi Jurgen, sorry for being late on this. Please find below a reproducible example showing the
8/5/25
stefano...@gmail.com
,
Jürgen Niedballa
2
8/5/25
argument ordered in plot_coef is not working as expected
Hello, please try with the dev version from GitHub, which also has a lot of other improvements. See
unread,
argument ordered in plot_coef is not working as expected
Hello, please try with the dev version from GitHub, which also has a lot of other improvements. See
8/5/25
Fernando Pinho
,
Juergen Niedballa
2
6/10/25
Issue Accessing Derived Quantities (bpvalue and r2) in communityModel
Hello, the bayesian p-values and related quantities (like r2, the species-specific residuals) are not
unread,
Issue Accessing Derived Quantities (bpvalue and r2) in communityModel
Hello, the bayesian p-values and related quantities (like r2, the species-specific residuals) are not
6/10/25
John Huang
, …
Juergen Niedballa
11
6/10/25
Error: cannot find Exiftool
Hello, the vignette 1 of camtrapR describes the manual installation process, but since you mentioned
unread,
Error: cannot find Exiftool
Hello, the vignette 1 of camtrapR describes the manual installation process, but since you mentioned
6/10/25
Juergen Niedballa
4/20/25
[BETA TEST] New camtrapR Shiny Dashboard - Complete camera trap analysis in one application!
Hello camtrapR community, I'm excited to announce the release of a completely overhauled Survey
unread,
[BETA TEST] New camtrapR Shiny Dashboard - Complete camera trap analysis in one application!
Hello camtrapR community, I'm excited to announce the release of a completely overhauled Survey
4/20/25
Rajashree Sain
,
Juergen Niedballa
3
4/4/25
Video metadata extraction and Duplicate removal
Thank you so much. It worked! On Wednesday, April 2, 2025 at 10:13:56 PM UTC+5:30 Juergen Niedballa
unread,
Video metadata extraction and Duplicate removal
Thank you so much. It worked! On Wednesday, April 2, 2025 at 10:13:56 PM UTC+5:30 Juergen Niedballa
4/4/25
Sanjana V. K
,
Juergen Niedballa
3
4/4/25
Filter record table - date and time conversion error
Hi, Thanks for getting back! I tried with the dev version but I'm still getting the same error:
unread,
Filter record table - date and time conversion error
Hi, Thanks for getting back! I tried with the dev version but I'm still getting the same error:
4/4/25
clara.mon...@hotmail.co.uk
, …
Juergen Niedballa
8
4/2/25
Record Table Error
Hello, It looks like there's confusion between the path to the exiftool executable and the
unread,
Record Table Error
Hello, It looks like there's confusion between the path to the exiftool executable and the
4/2/25
Tristan Purtlebaugh
,
Juergen Niedballa
2
3/11/25
Extracting Metadata into a csv
Hello, please share the code you used. The function recordTable is the main workhorse for such tasks,
unread,
Extracting Metadata into a csv
Hello, please share the code you used. The function recordTable is the main workhorse for such tasks,
3/11/25
Sajidah Salsabila Annisa
,
Juergen Niedballa
2
3/11/25
activity overlap pattern for multiple species
Hello Annisa, the function currently only implements the overlap of two species. If you need more
unread,
activity overlap pattern for multiple species
Hello Annisa, the function currently only implements the overlap of two species. If you need more
3/11/25
Tregear Louis
,
Jürgen Niedballa
4
2/21/25
Problem with the functions plot_effects and plot_coeff
Thank you for your follow-up. Let me clarify a few points: 1. Random effects can be used for both
unread,
Problem with the functions plot_effects and plot_coeff
Thank you for your follow-up. Let me clarify a few points: 1. Random effects can be used for both
2/21/25
Xavier
,
Juergen Niedballa
3
2/11/25
Issues with Photo loading
Thank you for the quick feedback. Good it's working again. Feel free to reach out if you have any
unread,
Issues with Photo loading
Thank you for the quick feedback. Good it's working again. Feel free to reach out if you have any
2/11/25
Magdalena Salas
,
Juergen Niedballa
2
12/21/24
mapping with community models
Hello, yes, you can create prediction maps for multi-species occupancy models, using the predict()
unread,
mapping with community models
Hello, yes, you can create prediction maps for multi-species occupancy models, using the predict()
12/21/24
Mohd Fikri Zaidan
,
Juergen Niedballa
3
12/4/24
Truncated Issue
Hello, please share the output of exif_read(), since you are using that already, or try running
unread,
Truncated Issue
Hello, please share the output of exif_read(), since you are using that already, or try running
12/4/24
Juan Camilo Cepeda Duque
11/10/24
Issues in creating a count history to run N-mixture models
Hi Jurgen, Sorry if the following question has been previously solved but I haven't found a
unread,
Issues in creating a count history to run N-mixture models
Hi Jurgen, Sorry if the following question has been previously solved but I haven't found a
11/10/24
Neofelis Nebulosa
11/5/24
error: Duplicate station name in multi-season data formatting
Hi Jurgen, I have 84 camera trap stations over seven years (14 seasons) and I wanted to format my
unread,
error: Duplicate station name in multi-season data formatting
Hi Jurgen, I have 84 camera trap stations over seven years (14 seasons) and I wanted to format my
11/5/24
Neofelis Nebulosa
,
Juergen Niedballa
3
11/4/24
Error: stationCol = "Station" is not a column name in CTtable
Sorted, thank you! Best, Yadav On Wednesday, October 30, 2024 at 1:07:24 AM UTC-4 Juergen Niedballa
unread,
Error: stationCol = "Station" is not a column name in CTtable
Sorted, thank you! Best, Yadav On Wednesday, October 30, 2024 at 1:07:24 AM UTC-4 Juergen Niedballa
11/4/24
Jarrad Barnes
, …
Neofelis Nebulosa
7
11/2/24
Multi-species *multi-season* communityModel?
Yadav, You need a new column that is something like "station_season". Eg, I have station
unread,
Multi-species *multi-season* communityModel?
Yadav, You need a new column that is something like "station_season". Eg, I have station
11/2/24
Walter Di Nicola
,
Juergen Niedballa
2
10/30/24
observation covariates changing over occasions in pcount
Hello, this is likely not possible out of the box because, as you said, only site covariates can be
unread,
observation covariates changing over occasions in pcount
Hello, this is likely not possible out of the box because, as you said, only site covariates can be
10/30/24
Neofelis Nebulosa
,
Juergen Niedballa
3
10/29/24
Can other tags be used to create record tables?
Sorry Jurgen, I kind of got lost after asking this question. Had to quickly finish the work I started
unread,
Can other tags be used to create record tables?
Sorry Jurgen, I kind of got lost after asking this question. Had to quickly finish the work I started
10/29/24
Magdalena Salas
,
Juergen Niedballa
2
9/15/24
Error with plot_effects() and plot_coef()
Hello, Please try changing this line in communityModel occuCovs = list(ranef = "Pje", ranef
unread,
Error with plot_effects() and plot_coef()
Hello, Please try changing this line in communityModel occuCovs = list(ranef = "Pje", ranef
9/15/24
Courtney Burk
, …
Jürgen Niedballa
6
8/11/24
hasProblems = TRUE issues
Thank you for the update. I will add a check and informative error massage for this situation to the
unread,
hasProblems = TRUE issues
Thank you for the update. I will add a check and informative error massage for this situation to the
8/11/24
jai yangc
,
Jürgen Niedballa
2
8/11/24
Can not rename
Hi, - do the examples from ?imageRename or the vignette work? - better don't use getwd(). Better
unread,
Can not rename
Hi, - do the examples from ?imageRename or the vignette work? - better don't use getwd(). Better
8/11/24