I want to use this set anlysis as an expression in a graph. My dimension to plot against this againist is called Main_Week. However the graph currently shows 02:03 for every week.
Could someone kindly help me write the correct syntax so the graph changes for every week
the dollar sign expansion is evaluated once per chart, in global context, so won't take your dimension values into account.
If you could create a single common field from [Total Wait] and [CONCLUSION_WAIT_MINS], you could use fractile() function without a dollar sign expansion, instead of the current solution.