饼图·VS·柱条图

关于饼图的使用问题的争论一直以来从未停息过，这是一个有趣的争论话题：以下是摘录各家之看法[翻译水平有限，难免有所疏漏，请网友雁过留声，不惜斧正。]，以馈读者：

Seth Godin 塞思 戈丁

Bar graphs vs. Pie charts

The bar graph is read left to right and seems to imply something about the declining relevance of Billygoats (even though close inspection shows that we expect high growth in billygoats next year). There’s data here, but no information.
条形图是从左向右读，似乎暗示对“Billygoats”下降相关的东西（即使关闭严格化的审视亦表明，我们期望在明年“billygoats”有所增长）。有数据在这里，但没有信息。

The pie chart contains far less data, but the point is obvious: Trolls are where we should focus our energy.
饼图包含少得多的数据，但有一点是显而易见的：旋转使我们集中精力

That’s why you use it. It makes an obvious point and leaves no real room for discussion. I think discussions are great, but that’s not why you are doing a presentation.
这就是为什么你使用它。它是一个明显的例子，没有讨论的余地。我想讨论是很多的，但是这不是你难易完成一个演示的理由。

I stepped on the toes of many data presentation purists yesterday, so let me reiterate my point to make it crystal clear: In a presentation to non-scientists (or to bored scientists), the purpose of a chart or graph is to make one point, vividly. Tell a story and move on. If you can’t be both vivid and truthful, it doesn’t belong in your presentation. (I can think of dozens of good uses of bar graphs… they’re not forbidden, they’re just overused and misused
昨天我查阅了大量资料介绍来证实我的观点，所以让我重申我的观点，使之清楚：非科学家(或无聊的科学家)在一个演示文稿中，一个图表或图形的目的是如何生动的说明一个问题。讲一个故事并继续进行。如果你不能既生动而真实，它不属于你的简报。 (我能想象到它比条形图使用好几十倍…他们不是禁止的，他们只是被滥用和误用)。

Junk Charts博客

Seth on bar charts

Here we present a different example, derived from a NYT article on diabetes in America.The original chart is a series of pie charts, one for each age group, and one for the aggregate data.
在这里，我们提出一个不同的例子，来自一个纽约时报的文章:原始图表为一个美国糖尿病数据系列的饼图,每个年龄段为一组，一个聚集为一类数据。

The junkart version uses a bar chart .Readers can get a more precise comparison of the prevalence rates across age groups because it is easier to judge lengths than areas.
该junkart版本使用了条形图。读者可以比较准确从年龄组的群体发病率很容易判断这个区域的长度比。

Dirty trick, you might say because the original chart actually prints the data in each pie.
拙劣的把戏，你可能会说其实原始图表实际上将数据打印在每个饼图。

So now there is no mistaking the data.This raises a philosophical question: why bother graphing the data if the reader needs to read the data in order to understand the chart?We call this the self-sufficiency test.  The graphical elements of a pie chart can’t stand on their own. 
所以现在却是肯定的数据。这就提出了一个哲学的问题：如果读者需要透过读取数据来理解该图表,为什么还要劳烦图型?我们称之为”自给自足的体验”。一个饼图不能透过自己的图形元素来进行图形表达。

Pointy Haired Dilbert

What is Your Opinion on Pie Charts?

Personally I think pie charts provide great utility at very little cost:They are very easy to create
我个人认为饼图以非常低的成本提供巨大效用：他们非常容易被创建。

Very very easy to understand (provided the data has some contrast, if your numbers are like 43,44,45,46, there is little chance that anyone can understand the resulting pie chart and make out which one is large and which one is small)
非常非常容易理解(所提供的数据需有一些明显的差异，如果你的数字像：43,44,45,46是，任何人都很少有机会可以理解饼图的结果，并指出哪一个大，哪一个小)。

But, I also think they are easy to abuse (one reason why you see way too many pie charts compared to other charts).
但是，我也认为它们很容易被滥用(一个原因在你看到的太多数据的饼图相对其他图表图表)。

What is Your Opinion on Pie Charts?

Here is what I think cripples a pie chart from being effective:
以下是我认为有缺陷饼图的原因：

Too many data points. A pie chart would probably be effective up to 4 values, anything more and you better have a strong story behind it for people to read and interpret.
太多的数据点。饼图可有效表达多达4个数据值，对于更多的数据,你则需要有一个强有力的人讲解故事来帮助阅读和理解。

Poor use of color. The purpose of color in most visualizations is to bring contrast。To separate apples from oranges。To throw light where your story lies.But most programs that are used to generate pie.charts have poor (and often scary) color choices.When you use poor color combinations, the result will be drastic.But this blame is not on the person making pie charts, but on the pie chart software.
可怜的使用颜色。可视化的目的，颜色最重要的是带来的对比。为了分开苹果桔子。为了扔光你故事中的谎言。但大多数是用于生成饼图方案匮乏的（通常是可怕的）颜色可供选择。当使用劣质的色彩组合，结果将是更加糟糕的。但是这指责并不归咎于饼图本身，而是生成饼图的软件。

Making Pie charts that are difficult to compare. The purpose of pie charts is to provide comparison.So when we make a pie chart that has poor ability to compare, we are already lost.That means we should avoid.all the flashy formatting, 3d pie charts, 3d donuts and layered donuts etc. Also, whenever possible, try Using data labels , using color and if nothing works, try using other types of charts for comparison.After all, we are not selling pie charts, we are selling our stories
制作饼图，很难进行比较。目的是透过饼图来提供比较。因此，当我们作出一个饼图的能力比较差，我们已经丢失了这个目的。这意味着我们要避免所有的华而不实的格式，三维饼图，三维甜甜圈和甜甜圈等分层此外，只要有可能，尽量使用数据标签 ，使用颜色，如果是无关紧要的工作，请尝试使用其他的类型的比较图表。毕竟，我们不卖饼形图，我们兜售图表讲述的故事。

你将如何看饼图？

你喜欢它，还是有意识地避免？

您如何看待饼图可以得到更好的和更广泛地使用？

轮到你了…