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Nested Iteration with model builder - using nested models

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I'm new to using model builder and have to do a nested iteration (for every month I have to iterate through 6 parameters). I am thinking of doing that by using nested models. One model doing the interation through monthes and then providing the current month as parameter to the submodel that iterates through the 6 parameters.

The linking of the models does not work correctly (boxes are not colored). How can I make the current month value available to the submodel? I just want the month parameter to be available in a function; I don't connect it to a function as input variable.

Your help would be greatly appreciated.

Thanks, Lea

Answers

You have to make it ModelParameter see pics.

And then you can add this variable in first model.

Nested Iteration with model builder - using nested models

Nested Iteration with model builder - using nested models

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