the problem: If the user selects only one element as a filter, a calculation must be made on the table, otherwise if he selects no element or more than one, another calculated field is created. I tried to solve: 1. I created a field that calculates the number of selected elements. 2. I created an if else: IF ( 'count_days'n = 1 ) RETURN 1 ELSE 0 I would like to create a parameter on the value of this calculated field to use on my main table
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