Eh, I’ve encountered plenty of times when I really needed to understand the variance of data such that I had to “zoom in” and put the start of the axis at something above 0 because otherwise I couldn’t find out what I needed to know to make a decision. But I do often like to see it both ways, so I can understand it both in relative and absolute terms.
Just so; the correct way is indeed to show the full (zero-based y-axis) chart, then a “zoomed-in” version, with the y-axis mapping clearly indicated. Of course, this takes more effort than just including the one chart; but this is not surprising—doing things correctly often takes more effort than doing things incorrectly!
Eh, I’ve encountered plenty of times when I really needed to understand the variance of data such that I had to “zoom in” and put the start of the axis at something above 0 because otherwise I couldn’t find out what I needed to know to make a decision. But I do often like to see it both ways, so I can understand it both in relative and absolute terms.
Just so; the correct way is indeed to show the full (zero-based y-axis) chart, then a “zoomed-in” version, with the y-axis mapping clearly indicated. Of course, this takes more effort than just including the one chart; but this is not surprising—doing things correctly often takes more effort than doing things incorrectly!