[Marxan] negative values as costs in MARXAN with Zones

leif olson leif.olson at gmail.com
Mon Dec 9 08:58:57 EST 2013


id advise you to partial out your costs, and use a feature that
proportionally increases in value anywhere you would want to use a
'negative' cost, then set a 100% target for that feature.
On 2013-12-08 3:36 PM, "Schroter, Matthias" <matthias.schroter at wur.nl>
wrote:

>  Dear MARXAN users,
>
>
>
> I just started to use MARXAN with Zones 2.01 and wondered if anyone has
> gathered experience on the following:
>
>
>
> How does MARXAN react if cost values assigned to planning units are
> negative? I have a problem to solve where conservation of some PU’s would
> not cost money but actually save money, i.e. delivers benefits (or negative
> costs). When setting a cost threshold and this beneficial areas are
> included, the cost threshold should thus be increased (or balance of some
> real costs made).
>
>
>
> Thanks a lot in advance!
>
> Best, Matthias
>
>
>
>
>
> --
>
> Matthias Schröter
>
> Ph.D. candidate
>
> Wageningen University, Environmental Systems Analysis Group
>
>
>
> guest researcher at Norwegian Institute for Nature Research (NINA)
>
> (August to November 2013)
>
>
>
> P.O. Box 47, 6700 AA Wageningen, The Netherlands
>
> Telephone: +31 (0) 317 – 48 57 30, Fax: +31 (0) 317 – 41 90 00
>
> matthias.schroter at wur.nl  -  http://www.esa.wur.nl
>
>
>
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