I've downloaded the free version of SAC to learn the tool, but it seems that the **average** function is not working on the trial version?

**For example - here is the underlying data from an excel spreadsheet **(One dimension and two measures):

**Here is the measure calculation for the bars where I select average:**

**And the chart simply sums the data instead of averaging it **(in fact none of the operators seem to work and data is only summed irrespective of the operator that I select).

**Here is the resultant chart:**

**And what I want go visualize is this (a simple average by dimension):**

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