https://community.esri.com/t5/arcgis-pro-questions/using-multiple-arrays-to-populate-new-features/m-p/1194765#M57601 <P>Hi All</P><P>Trying to create an arcade expression to populate a field, i am wanting to construct features using two arrays, is it possible to loop through multiple arrays in parallel (they are the same length), i know i can do this in python by using "for x,y in zip(x_list, y_list):"</P><P>&nbsp;</P><LI-CODE lang="csharp">DormArray = [FP1Dorm,FP2Dorm,FP3Dorm,ConDorm,MedDorm,BlisDorm] DormWeightArray = [FP1DormWeight,FP2DormWeight,FP3DormWeight,ConDormWeight,MedDormWeight,BlisDormWeight] var summarydict = { fields:[ {'name':'Dormancy','type':'esriFieldTypeString'}, {'name':'DormancyWeight','type':'esriFieldTypeDouble'}], 'geometryType': '', 'features':[] } for (var d in DormArray and var w in DormWeightArray){ var new_f = {'attributes': {'Dormancy': d, 'DormancyWeight':w }} Push(summarydict.features, new_f)</LI-CODE> Fri, 22 Jul 2022 00:06:09 GMT PeterMilenkovic 2022-07-22T00:06:09Z https://community.esri.com/t5/arcgis-pro-questions/using-multiple-arrays-to-populate-new-features/m-p/1194765#M57601 <P>Hi All</P><P>Trying to create an arcade expression to populate a field, i am wanting to construct features using two arrays, is it possible to loop through multiple arrays in parallel (they are the same length), i know i can do this in python by using "for x,y in zip(x_list, y_list):"</P><P>&nbsp;</P><LI-CODE lang="csharp">DormArray = [FP1Dorm,FP2Dorm,FP3Dorm,ConDorm,MedDorm,BlisDorm] DormWeightArray = [FP1DormWeight,FP2DormWeight,FP3DormWeight,ConDormWeight,MedDormWeight,BlisDormWeight] var summarydict = { fields:[ {'name':'Dormancy','type':'esriFieldTypeString'}, {'name':'DormancyWeight','type':'esriFieldTypeDouble'}], 'geometryType': '', 'features':[] } for (var d in DormArray and var w in DormWeightArray){ var new_f = {'attributes': {'Dormancy': d, 'DormancyWeight':w }} Push(summarydict.features, new_f)</LI-CODE> Fri, 22 Jul 2022 00:06:09 GMT https://community.esri.com/t5/arcgis-pro-questions/using-multiple-arrays-to-populate-new-features/m-p/1194765#M57601 PeterMilenkovic 2022-07-22T00:06:09Z https://community.esri.com/t5/arcgis-pro-questions/using-multiple-arrays-to-populate-new-features/m-p/1194779#M57605 <P>Well i found this thread which helped me figure it out.</P><P><A href="https://community.esri.com/t5/developers-questions/arcade-multiple-values-in-an-array-arrays-in-an/m-p/1026247#M5766" target="_blank">https://community.esri.com/t5/developers-questions/arcade-multiple-values-in-an-array-arrays-in-an/m-p/1026247#M5766</A></P><P>Rather than having two arrays i created a nested one and used an index to access the sub array values.</P><LI-CODE lang="csharp">var DormArray = [[FP1Dorm,FP1DormWeight],[FP2Dorm,FP2DormWeight],[FP3Dorm,FP3DormWeight],[ConDorm,ConDormWeight],[MedDorm,MedDormWeight],[BlisDorm,BlisDormWeight]] var summarydict = { fields:[ {'name':'Dormancy','type':'esriFieldTypeString'}, {'name':'DormancyWeight','type':'esriFieldTypeInteger'}], 'geometryType': '', 'features':[] } for (var d in DormArray){ var new_f = {'attributes': {'Dormancy': DormArray[d][0], 'DormancyWeight':DormArray[d][1] }} Push(summarydict.features, new_f) } var predomDorm = first(groupby(featureset(text(summarydict)),'Dormancy',[{name:'DormSum',expression:'DormancyWeight',statistic:'SUM'}]))['Dormancy'] return predomDorm</LI-CODE><P>&nbsp;</P> Fri, 22 Jul 2022 01:21:54 GMT https://community.esri.com/t5/arcgis-pro-questions/using-multiple-arrays-to-populate-new-features/m-p/1194779#M57605 PeterMilenkovic 2022-07-22T01:21:54Z