[R-pkg-devel] [External] circular suggested packages

Thierry Onkelinx th|erry@onke||nx @end|ng |rom |nbo@be
Tue Nov 7 21:13:32 CET 2023


The goal of opencv is to provide bindings to 'OpenCV' Computer Vision
Library. Hence a much wider scope than just reading qrcodes. qrcode just
focusses creating different qrcodes. The fact that they can use each other
to test themselves is a happy coincidence.

ir. Thierry Onkelinx
Statisticus / Statistician

Vlaamse Overheid / Government of Flanders
INSTITUUT VOOR NATUUR- EN BOSONDERZOEK / RESEARCH INSTITUTE FOR NATURE AND
FOREST
Team Biometrie & Kwaliteitszorg / Team Biometrics & Quality Assurance
thierry.onkelinx using inbo.be
Havenlaan 88 bus 73, 1000 Brussel
www.inbo.be

///////////////////////////////////////////////////////////////////////////////////////////
To call in the statistician after the experiment is done may be no more
than asking him to perform a post-mortem examination: he may be able to say
what the experiment died of. ~ Sir Ronald Aylmer Fisher
The plural of anecdote is not data. ~ Roger Brinner
The combination of some data and an aching desire for an answer does not
ensure that a reasonable answer can be extracted from a given body of data.
~ John Tukey
///////////////////////////////////////////////////////////////////////////////////////////

<https://www.inbo.be>


Op di 7 nov 2023 om 21:01 schreef Richard M. Heiberger <rmh using temple.edu>:

> Why are these functins in two different packages?
> On the surface it looks like qrcode is a transformation function and
> opencv is its inverse.
>
> > On Nov 7, 2023, at 14:55, Thierry Onkelinx <thierry.onkelinx using inbo.be>
> wrote:
> >
> > Dear all,
> >
> > The qrcode package converts text into a qrcode image. The opencv package
> is
> > able to convert images with a qrcode into the text. opencv has a unit
> test
> > that uses qrcode to generate a test image. Hence it lists qrcode as a
> > suggested package.
> >
> > Would it be OK to implement the same unit test in qrcode? And thus
> > requiring qrcode to list opencv as a suggested package. I know this is
> not
> > allowed when depending or importing packages.
> >
> > Best regards,
> >
> > ir. Thierry Onkelinx
> > Statisticus / Statistician
> >
> > Vlaamse Overheid / Government of Flanders
> > INSTITUUT VOOR NATUUR- EN BOSONDERZOEK / RESEARCH INSTITUTE FOR NATURE
> AND
> > FOREST
> > Team Biometrie & Kwaliteitszorg / Team Biometrics & Quality Assurance
> > thierry.onkelinx using inbo.be
> > Havenlaan 88 bus 73, 1000 Brussel
> > http://www.inbo.be/
> >
> >
> ///////////////////////////////////////////////////////////////////////////////////////////
> > To call in the statistician after the experiment is done may be no more
> > than asking him to perform a post-mortem examination: he may be able to
> say
> > what the experiment died of. ~ Sir Ronald Aylmer Fisher
> > The plural of anecdote is not data. ~ Roger Brinner
> > The combination of some data and an aching desire for an answer does not
> > ensure that a reasonable answer can be extracted from a given body of
> data.
> > ~ John Tukey
> >
> ///////////////////////////////////////////////////////////////////////////////////////////
> >
> > <https://www.inbo.be/>
> >
> > [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > R-package-devel using r-project.org mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-package-devel
>
>

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