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tinySparkOf_Chaos t1_izjjz9g wrote

I appreciate the warning. And it is helpful to show these to people.

Just be aware that some of these graphs DO have legitimate use cases.

Double y axis is used for things that aren't the same units. For example if you wanted to graph GDP and population over time in a country.

Sometimes a small change in a very big number is important to show. I like to use residual/difference graphs for these, but most people find that type of graph even more confusing. This is where the offset y-axis can be used legitimately.

Another one you could add to this chart is logarithmic with my graphs. Logarithmic y axis graphs are another favorite of mine, but can also be very confusing/misleading to people who are not familiar with them.

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