[Qgis-user] Add a column to the table of a vector object

[Agustin Lobo]

Thanks, Jurgen,

Saving the table as dbf from R (just done with 
write.dbf(oldnewclass,file="oldnewclass.dbf") )
and using join worked very well. Problem solved.

Editing in OO is faster but I found that while back
in QGIS the new field is displayed in the table and in Properties/Atributes
(and you can base the symbology on it), the new field is not
print when you use the Identify Features tool on the display. Is
this a bug or a normal behavior? Perhaps some kind of updating of the 
vector object is required?

Regarding
"Given a recent GDAL (ie >=1.6) you don't need the table
manager to add fields to shapes anymore. GDAL and in turn QGIS can do it 
on it's own. "

How? There is no Add Field button in the Table even if you toggle 
Editing on.
Is this a new possibility open by GDAL that requires adding the feature
to the QGIS menu?

Agus

Jürgen E. Fischer wrote:
> Hi Agus,
>
> On Wed, 16. Sep 2009 at 19:04:11 +0200, Agustin Lobo wrote:
>   
>> I have to add a column (field) to the table of a vector object and populate
>> it with values I have in a text file (resulting from a process in R).
>>     
>
> If you can create a DBF file instead you could use fTools' "Join Attributes".
> If that's not possible, you could probably use OpenOffice to create a DBF from
> that file.
>
>
>   
>> I know I can create an empty new field with Table Manager.
>>     
>
> Just for the record.  Given a recent GDAL (ie >=1.6) you don't need the table
> manager to add fields to shapes anymore.  GDAL and in turn QGIS can do it on
> it's own.
>
>
>
> Jürgen
>
>