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
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