[Qgis-user] Working with field calculator on QGIS 1.8.0

[Manuel Spínola]

Thank you very much Leonardo.

That works.

Manuel

2012/7/5 <lami at gis3w.it>

>
> Sorry,
>
> this is the rigth expression:
>
> case when "COVER"  = 'A' THEN 1 ELSE 2 END
>
>
> but you have to sign the box in the "update existing field" and choose the
> field "NEW_cover"
>
> Regrads
>
> Leonardo
>
>
>
> Leonardo Lami
> Gis3W
> e-mail: lami at gis3w.it
> Cell: 349 1310164
> Web: www.gis3w.it
>
>
> On Thu, 5 Jul 2012 10:10:10 -0600, Manuel Spínola <mspinola10 at gmail.com>
> wrote:
> > Thank you very much Leonardo.
> >
> > No, it didn't work.
> >
> > Manuel
> >
> > 2012/7/5 <lami at gis3w.it>
> >
> >>
> >> Hi Manuel,
> >>
> >> Try:
> >>
> >> case when "COVER"  = 'A' THEN "NEW_COVER"  = 1 ELSE "NEW_COVER"  = 2
> END
> >>
> >> Best,
> >>
> >> Leonardo Lami
> >>
> >>
> >> Gis3W
> >> e-mail: lami at gis3w.it
> >> Cell: 349 1310164
> >> Web: www.gis3w.it
> >>
> >>
> >>
> >> On Thu, 5 Jul 2012 09:26:41 -0600, Manuel Spínola
> <mspinola10 at gmail.com>
> >> wrote:
> >> > Dear list members,
> >> >
> >> > I am using the field calculator in 1.8.0 (Mac OS)
> >> >
> >> > I am creating a new field (column) called NEW_COVER and I want to
> >> > assign
> >> a
> >> > value of 1 to the value A of the existing field (column) Cover and 0
> to
> >> the
> >> > value B.
> >> >
> >> > Field: Cover
> >> > Values: A, B
> >> >
> >> >
> >> > In the Expression window I have:
> >> >
> >> > 'A' = 1
> >> >
> >> > But when I click OK, I don't get the result that I was expecting, to
> >> have a
> >> > value 1 on the new field NEW_COVER.
> >> >
> >> > What I am doing wrong?
> >> >
> >> > Best,
> >> >
> >> > Manuel
> >> _______________________________________________
> >> Qgis-user mailing list
> >> Qgis-user at lists.osgeo.org
> >> http://lists.osgeo.org/mailman/listinfo/qgis-user
> >>
> _______________________________________________
> Qgis-user mailing list
> Qgis-user at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/qgis-user
>



-- 
*Manuel Spínola, Ph.D.*
Instituto Internacional en Conservación y Manejo de Vida Silvestre
Universidad Nacional
Apartado 1350-3000
Heredia
COSTA RICA
mspinola at una.ac.cr
mspinola10 at gmail.com
Teléfono: (506) 2277-3598
Fax: (506) 2237-7036
Personal website: Lobito de río <https://sites.google.com/site/lobitoderio/>
Institutional website: ICOMVIS <http://www.icomvis.una.ac.cr/>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20120705/eb132b42/attachment.html>