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<p>Hi,</p>
<p>You could try a "join attribute by location" followed by a
"Aggregate"...</p>
<p>Nicolas<br>
</p>
<div class="moz-cite-prefix">On 2022-01-26 3:43 a.m., Simon Dietmann
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:ae75bb0c-80e6-4d99-b588-9a18e51c5e37@pgnu.de">
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<p class="MsoNormal"><span lang="EN-GB">Dear list,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">I am trying to find a
solution for the following problem with the model builder:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">My model asks for two
vector polygon layers that will be combined by ‘union’. The
resulting layer gets a new field (field calculator) and is
evaluated by ‘Statistics by categories’ algorithm. The
fields for the categories are selected by the user when
calling the model. Since those fields are present in the two
separate input layers, I have to use two separate ‘Vector
field’ inputs.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">The problem arises when
I try to combine those two input variables to use them
together for the ‘Statistics by categories’ algorithm.
AFAICS there is no function inside the model builder to
achieve this, so I suggest I have to export the model as a
python script. There I found that the call of the Statistics
function gives the name of the variable as a parameter and
not the variable itself:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">alg_params = {<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">
'CATEGORIES_FIELD_NAME': parameters['fields'], ….<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">How can I combine my two
lists (~like “parameters[‘fields’+’fields2’], or is there a
way to do this inside the model builder that I didn´t find?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Thanks in advance for
help, kind regards<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal">Simon Dietmann<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:DE"><br>
<br>
Mit freundlichen Grüßen<br>
im Auftrag<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:DE"><br>
Simon Dietmann<br>
</span><span
style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#999999;mso-fareast-language:DE">M.Sc.
Physische Geografie<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#999999;mso-fareast-language:DE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#999999;mso-fareast-language:DE">Aufgrund
der aktuellen Situation bin ich zur Zeit vermehrt im Home
Office tätig und dort erreichbar unter +49 69 – 57 80 56 98
oder per Email, ich rufe Sie dann gerne zurück.<br>
<br>
</span><span style="mso-fareast-language:DE"><img
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<br>
<o:p></o:p></span></p>
<p class="MsoNormal"><span
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</blockquote>
<pre class="moz-signature" cols="72">--
Nicolas Cadieux
<a class="moz-txt-link-freetext" href="https://gitlab.com/njacadieux">https://gitlab.com/njacadieux</a></pre>
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