Customizing serial chart value axis minimum values

JimMiller3 — Fri, 13 Sep 2024 00:19:06 GMT

I have a dashboard with a serial chart (line), controlled by a selector action, to show state and county populations over several decades. Most rates of change are small, but not insignificant.

If I set the value axis' minimum value to 0, the resulting line chart looks flat for many counties. Any growth or decrease in population can be difficult to see. But if I set the minimum value to "Automatic," the line chart begins at the lowest value in a series. That can make relatively small changes seem large.

I would like to find a middle spot. What I would like to do is to set the Minimum Value as a percentage of the lowest value in the series. For example, 50%. So, if the lowest value in the series is 100,000, the value axis would begin at 50,000.

I'd appreciate any guidance on if this is possible in the chart settings, through a data expression, or something else, and if there are any suggestions for a workaround.

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Customizing serial chart value axis minimum values