[Qgis-user] combine field calculator functions

[Nathan Woodrow]

Hey Micheal,

This is currently not possible.  If you are running QGIS 1.9 you do have
the ability to define your own functions using Python example here
https://github.com/NathanW2/qgsexpressionsplus/blob/master/functions.py however
if you are new to Python and QGIS this isn't something I would do right
away.

- Nathan


On Tue, Aug 6, 2013 at 9:38 PM, Michael Giebels <giebels at meo-carbon.com>wrote:

>  Hello QGIS users,
>
> the QGIS world is new to me, so please be gentle...
>
> I am wondering how I could combine field calculator functions in order to
> convert information from an existing data column into a new one.
> What I can do with my mediocre knowledge is to query information from
> column 1 by setting
>
> "column1"='abc'
>
> which gives me a binary result (0,1) in my resulting column. Then I can
>
> replace ("newcolumn",'1','6')
>
> How could I combine these two into one working function (i.e. there MUST
> be a simple expression in the function list) and do not lose the new number
> when querying another information (e.g. 'cba') from column 1?
>
> Thanks in advance!
>
> Michael
>
>
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