[tdwg-content] Fwd: [dwc] quantity (#12)

Markus Döring m.doering at mac.com
Mon Dec 15 15:47:35 CET 2014


"r" is a value for very few individuals in the Braun Blanquet cover abundance scale which is used a lot in vegetation studies. It is like various others a non continous scale with discrete values. I do not think we should restrict quantity to contious numeric scales. 

Markus



> Am 15.12.2014 um 15:36 schrieb Paul J. Morris <mole at morris.net>:
> 
> Markus can probably answer this question: 
> 
> What would be the expected value of QuantityType for a Quantity of "r"?
> 
> A comment Bob Morris occasionally makes is: "1 is greater than 2 for
> sufficently large values of 1".  If some particular quantity type has a
> standard set of codes that represent numbers, then it might be
> appropriate to use those standard codes as values of quantity.
> 
> -Paul
> 
> On Mon, 15 Dec 2014 12:48:06 +0100
> John Wieczorek <tuco at berkeley.edu> wrote:
> 
>> Der all,
>> 
>> I am forwarding this comment from Simon Cox, which was submitted to
>> the Darwin Core development site on Github.
>> 
>> Cheers,
>> 
>> John
>> 
>> ---------- Forwarded message ----------
>> From: Simon Cox <notifications at github.com>
>> Date: Mon, Dec 15, 2014 at 4:47 AM
>> Subject: Re: [dwc] quantity (#12)
>> To: tdwg/dwc <dwc at noreply.github.com>
>> Cc: John Wieczorek <tuco at berkeley.edu>
>> 
>> 
>> 'quantity' usually implies an amount, encoded as a scaled number.
>> In most other domains it does not include a value from an enumerated
>> set. The latter may be called 'quality'.
>> Both quantity and quality are subclasses of 'property'.
>> 
>>>> Reply to this email directly or view it on GitHub
>> <https://github.com/tdwg/dwc/issues/12#issuecomment-66946784>.
> 
> 
> -- 
> Paul J. Morris
> Biodiversity Informatics Manager
> Harvard University Herbaria/Museum of Comparative Zoölogy
> mole at morris.net  AA3SD  PGP public key available
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