While it is generally considered a No-No to start a bar chart from a baseline that is not zero, there is no corresponding prohibition, especially among numerically sophisticated audiences, for scatter plots or line charts. In general, we want graphs to focus on the area of variation.
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While it is generally considered a No-No to start a bar chart from a baseline that is not zero, there is no corresponding prohibition, especially among numerically sophisticated audiences, for scatter plots or line charts. In general, we want graphs to focus on the area of variation.
For example, take a look at just about any stock chart (try https://www.google.com/finance/beta/quote/GOOG:NASDAQ?hl=en). There's actual money on the line, but no baseline. Why do you think that is?