![]() Say, for instance, you have a pie chart giving you the percentages of Americans that are Democrat, Republican, or Other. I've seen bar-in-pie and pie-in-pie charts where one item of the pie is broken down into sections but was wondering if more than one, or all sections of the pie could have their own smaller pie (or bar) charts extending out from the primary, larger pie. I was wondering if it was possible to have (on the same page) smaller pie charts (or even bar charts) breaking down what A, B, and C consist of. Say for instance, you have a pie broken into 3 sections: A, B, and C. Only people who express a clear choice at that moment are included in the ‘100%’.Nah, that wasn't what I was looking for. Also people who haven’t reached a decision yet. But in fact, the convention (and it seems to be global) is not just to exclude people who aren’t going to vote, but also to leave out people who intend to vote, but who won’t tell the company what they’ve decided. What should be included in this ‘whole’? Everyone who intends to vote, you might think. If pie charts should show 100% or a ‘meaningful whole’, then how do you define this whole? For example, I worked for a UK market research firm for a few years and we would sometimes have to show pie charts of voting intention. ‘Numbers are rounded so the percentages may not add up to 100%.’)įinally, following this rule can create other problems. ![]() (When this happens, it’s a good idea to mention it in a footnote e.g. This means both 9.5% and 10.49% become 10% and inevitably means that pie charts can add up to 98% or 102% or anything in between. ![]()
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