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"Iteration macro inside Loop collection"
Maybe someone knows how to solve my problem: I have a collection of n ExampleSets and a collection of n Models. I want to apply n-th model to corresponding n-th ExampleSet, so I have to loop through two collections in parallel.
After trying a lot of things, I found out that the most logical way would be storing one collection with "Remember" operator, and then loop through the other one, "Recalling" the first one and selecting the n-th item on each loop.
The problem is how to select the n-th item inside the collection loop.
Most loops have the "iteration macro" parameter, which is exactly what I am looking for - however the "Loop collection" operator lacks this parameter.
I also cannot find a way to loop through a collection of items using different operator than "Loop collection". "Loop until" seems reasonable, but how to specify "input collection is empty" condition?
Is there any way to do that?