# Combining sublists

**URL:** <https://forum.dynamobim.com/t/combining-sublists/6489>\
**Category:** Lists-Logic\
**Created:** [October 2, 2016, 1:00am UTC](https://forum.dynamobim.com/t/combining-sublists/6489 "2016-10-02T01:00:48Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![JAVIER\_FQG](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/javier_fqg/32/12608_2.png) [@JAVIER\_FQG](https://forum.dynamobim.com/u/JAVIER_FQG)\
**Post date:** [October 2, 2016, 1:00am UTC](https://forum.dynamobim.com/t/combining-sublists/6489/1 "2016-10-02T01:00:48Z")

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Hi guys  
I have 10 list. In each list there are 15 sublists and in each one of this sublist 2 points. I want to combine all the sublists with the index 0, 1, 2…until 15. ¿How can I do that? I have try list combine, list transpose…and those doesn´t work¡¡

 ![](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/2X/1/19b617fe89ce42dbb3d1c5127c2d7082dab4699c.jpg)

Thx

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**Author:** ![GregX](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/gregx/32/56837_2.png) [@GregX](https://forum.dynamobim.com/u/GregX)\
**Post date:** [October 2, 2016, 2:38am UTC](https://forum.dynamobim.com/t/combining-sublists/6489/2 "2016-10-02T02:38:08Z")

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Is the second point of the sublist _n_ always equal to the first point of the sublist _n+1_? what about the last sublist? Are there relations between the 11 lists?  
For this example I used random points imagining that the last point of the 15th sublist is the same of the first of the 1st, so that I could ignore it. You could play with List.UniqueItems and ProneDuplciates nodes if you need more control…

 ![](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/2X/3/31bec7482fc6956530a7914f274670f639a1a014.png)

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**Author:** ![JAVIER\_FQG](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/javier_fqg/32/12608_2.png) [@JAVIER\_FQG](https://forum.dynamobim.com/u/JAVIER_FQG)\
**Post date:** [October 3, 2016, 2:28pm UTC](https://forum.dynamobim.com/t/combining-sublists/6489/3 "2016-10-03T14:28:34Z")

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sorry @GregX maybe I explained myself wrong…what I need is to combine the sublist 0 of the list 3 with the sublist0 of the list 4. Then the sublist 0of the list 4 with the sublist 0 of the list 5…and keep like this until finish

Sublist1 List 1 with Sublist 1 list2…Maybe like this i have explained myself better? thank u¡¡

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**Author:** ![Dimitar\_Venkov](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/dimitar_venkov/32/2068_2.png) [@Dimitar\_Venkov](https://forum.dynamobim.com/u/Dimitar_Venkov)\
**Post date:** [October 3, 2016, 2:51pm UTC](https://forum.dynamobim.com/t/combining-sublists/6489/4 "2016-10-03T14:51:38Z")

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Sounds like you need a list.transpose node

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<div class="post-metadata">

**Author:** ![JAVIER\_FQG](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/javier_fqg/32/12608_2.png) [@JAVIER\_FQG](https://forum.dynamobim.com/u/JAVIER_FQG)\
**Post date:** [October 3, 2016, 3:12pm UTC](https://forum.dynamobim.com/t/combining-sublists/6489/5 "2016-10-03T15:12:52Z")

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Yeah thats the solution…i dot know why the other day It was impossible to solve that, maybe it was to late…I have use list transpose+list sublist and the list map with list flatten to get the final solution 😃  
Thank u @Dimitar_Venkov and also thanks to @GregX

 ![](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/2X/a/a036bfedb5b4206842899e480dc0d7b49b85cbe4.jpg)