Problem with accumulating detail attrib inside FOREACH

[tfreitag]

hey,

 

so this simple problem driving me crazy. So I have a "For Each" driving by an attribute. Inside I am using a attrib promote to sum up a point attribute as SUM in details. All are integers.

 

Here is a example.

 

Iteration   detailattrib  result (sum every iteration)

1.                  5               5

2.                  3               8

3.                  2              10

4.                  4              14

..

 

My idea: sum=sum(current iteration)+sum(last iteration)

 

BUT I can't using "MERGE RESULTS".

 

I have found a thread, where Jeff uploaded a sample file. But in his file the iterator summation works only with foreach in feedback modus. But I don't want it.

 

any help woudl be great

 

thanks in advance.

tom

 

summation_insideforeach.hipnc

[3iart]

would using a solver sop followed by a time shift sop where frame = iteration # work better?

[tfreitag]

thanks for reply. everything is build around the foreach. so i have to use it. but anyway, i got some help at sidefx forum:

https://www.sidefx.com/index.php?option=com_forum&Itemid=172&page=viewtopic&t=16600