create group with wrangle from @class using "iteration" in foreach

[bonassus]

I'm trying to create groups with a wrangle from @class attrib after a connectivity sop, using "iteration" attrib in a foreach loop. 

f@group_`"detail("../foreach_begin1_metadata1/", "iteration", 0)"` = @class;

I was thinking the backticks and quotes should resolve to the iteration number as a string. then concatenate it to the f@group_ and that equal to class number. However i think the iteration and class atribs are integer values and the f@group has to be a float?

confused...

[toadstorm]

If you want to create groups from an i@class attribute, maybe just use the Partition SOP?

[j00ey]

If you specifically want to do it inside a for each, this will work (metadata must be plugged into second input):

setpointgroup(0, sprintf("group_%i", int(detail(1, "iteration", 0))), @ptnum, 1, "set");

*edit : presuming you're using class as your piece attribute

Edited March 2, 2018 by j00ey

[bonassus]

1 hour ago, j00ey said:

If you specifically want to do it inside a for each, this will work (metadata must be plugged into second input):

setpointgroup(0, sprintf("group_%i", int(detail(1, "iteration", 0))), @ptnum, 1, "set");

*edit : presuming you're using class as your piece attribute

sprintf thats right. thank you.