Assign value to a placeholder

[adonnini]

I understand. Yet, execution fails because of the change in #timeSteps from one iteration to the next. You saw the error message.

I thought that defining the weight variable as a placeholder would resolve the problem. However, I don’t know how to assign a value to a placeholder variable.

I thought you suggested to take the approach of defining weights as a placeholder in this thread:

Reduce rank and set values according to 3rd dimension

[ [[1,0,0,0],[0,1,0,0],[0,0,1,0]], [[1,0,0,0],[0,1,0,0],[0,0,1,0]] ] How to get below result from above SDVariable? Reduce 3rd dimension, and the value = 0.1 when 1 exists in the first or 2rd position, otherwise value = 1. [ [0.1,0.1,1], [0.1,0.1,1] ]