Use the sub-menu to navigate
through the various categories. Here, you can find (links
to) software to analyse your data, or for simulations. Can't
find what you're looking for? Check out the website on Ecotoxicology and
Models. The DEBtoxM and BYOM packages for Matlab are
maintained by Tjalling
Jager (DEBtox Research). If you find these packages
useful, please consider paying for my e-books.
That way, I can continue to allocate time to updating the
packages. The 'other software' includes a short explanation
and links to the GUTS R-packages, the NETlogo DEB-IBM
package, DEBtool, and more if things pop up.
What if I have questions about the software?
Use e-mail to contact me with your questions. I
will personally make sure that your questions regarding the
DEBtoxM and BYOM implementations will be addressed (as I
developed the Matlab code). However, I do not run a help
desk! I will try to answer simple questions ASAP, but for
assistance in doing model analyses, I would need to be
funded from somewhere (which is also an
option). For the other software, I cannot provide any
support, but I can forward your question to the developer if
you like. None of this software is developed by professional
software engineers, so be prepared to do some work (but it's
totally free, so don't complain).
What happened to the DEBtox Windows software?
That software is no longer offered
or maintained. The underlying equations for sub-lethal
endpoints contained a few errors (see Jager
& Zimmer, 2012 for a corrected set of equations),
and it was programmed in such a way that it is almost
impossible to update. The Matlab implementations as part of
DEBtoxM and BYOM that you can find on this site are much
more flexible, but of course, much less user-friendly.
Can't you do the analysis for me?
Being self-employed, I have to
operate commercially, so I have little possibility to work
for free. If it's a very limited (or very interesting)
analysis, and if time permits, I might help you for free. If
it's more work (or boring), I have to be funded from
somewhere (see DEBtox
Why don't you have some nice user-friendly software for
Because we are not software
engineers. The people that made these Matlab, Octave, R and
NetLogo packages are scientists, who do not get paid to
develop nice software for everybody to use (and probably
also do not have the expertise for that). But, if you are a
programming enthousiast, and you are willing to build
something (that can be distributed for free, or used as a
web-application) ... do not hesitate to contact me! However, for GUTS, several user-friendly
platforms are available or will become available soon. I
will link to these and other relevant softwares on my other-software page.
Under what conditions can I use your Matlab files?
The Matlab implementations that I
offer on debtox.info are freely available for all uses,
including commercial applications. With a few comments:
- As I state on my web pages for DEBtoxM
and BYOM: "The files are
prepared with care, but not extensively tested (and I
adapt them all the time), so I cannot give any
guarantees as to their correctness (in fact, I am pretty
sure that they will contain errors). I do not accept
liability or responsibility for any damage or costs
incurred as a result of these errors."
- Do not represent these Matlab files, or parts thereof,
as your own work. Please clarify in your application
(paper, report, software, etc.) that you used these
files, with a reference to my web pages and the version
- Feel free to modify the files to suit your needs.
However, if you do, please clarify in your
application/report that you modified the files. If you
spot errors or come up with improvements, I would
appreciate some feedback.
- I accept no liability whatsoever regarding these
implementations, but also do not provide a help desk. I
may help you with some straightforward, explanatory,
questions, but for more substantial help I would need to
be funded (which
is also an option).
- The DEBtoxM implementations, I do not recommend. It
has been quite a while since I last used them, and
development has ceased. The BYOM files, I use on a very
regular basis, which means they are more up-to-date and