Fathom was specifically designed to work with raw data, wherein each case represents some thing. If all you have is summary data, however, you can trick Fathom into making a bar chart. See Cases for a discussion of this distinction.
1. Keep the Shift key pressed when dropping the attribute onto an empty graph to get a bar chart.
2. Edit the formula governing the heights of the bars to sum(attrName)
.
See Change Bar Charts to Reflect a Function Other Than Count.
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