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I am having some difficulty in getting my aggr() function to work in one of my charts and am hoping this brilliant crew can assist.
In short, I am measuring the quantity of incidents by divisions. I am using a scatter chart with two dimensions being =ValueList('A','B') and =Division. I then have two expressions:
if(ValueList('A','B')='A', max(aggr(Count(Incidents),Division))/2, count(Incidents))
if(ValueList('A','B')='A', 0, sum(Cost))
The purpose of the aggr() function above is to find the Division with the most incidents, divide that number by 2 and then set the mid point of the chart at that location. I am trying to create a starting 'mid-point' that should be the same for all Divisions showing on the chart. This should also be a dynamic mid-point as filters are set (such at date range etc.).
The issue appears to be that the aggr() function is doing the aggregation by dimension one Division at a time. Since my chart dimension and the aggr () dimension are the same, my mid point is only aggregating with the one dimension available to it at a time. The result is that every division has a different starting point that is set at half that divisions incident count.
I have tried using max(aggr(Count(TOTAL Incidents),Division))/2 , however, that simply gets me the Total of all Divisions divided by 2 not the Total count of the largest division divided by 2.
The $Million dollar question is: How do I get the aggr() function to look at ALL divisions inside the expression so that it can select the max total of the highest division?