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This chart is hard to read: http://i.imgur.com/HJYmCLN.png http://i.imgur.com/HJYmCLN.png Since the values are percentages, it's weird that the scale is out of

by panic 11y ago

This chart is hard to read: http://i.imgur.com/HJYmCLN.png http://i.imgur.com/HJYmCLN.png Since the values are percentages, it's weird that the scale is out of 0.9 -- why not 100? Why leave out the other ~98% from the visualization? The radial arrangement makes it even harder to read and compare the values. The effect (at least for me) was to make it seem like these images appeared much more often than they actually did. I actually found the raw numeric table below more illustrative!

ossreality 11y ago
Seriously? You don't know that 0 = 0%, 1 = 100%, .5 = 50%, etc? Also, it's not "out-of", it's just showing you what a radius of that length is equivalent to. If anything, it's "confusing" because it's a pie chart where the width of each wedge doesn't correspond to the percentage (instead it's the full area of the wedge)
VieElm 11y ago
Pie charts are already a terrible visualization, this is way worse. You're supposed to compare the area of these half circle shaped rotated slices easily? Should have just used a bar chart, in fact why wouldn't you use a bar chart? You could just have a single box and illustrate the percentage amounts by dividing the box up into different colors to indicate the percentages of a whole, but this? Nope. Tufte would probably not be pleased.
- jnbiche 11y ago
  Pie charts are excellent for showing parts of a whole, and very poor for any other type of visualization. Just because people are misusing a chart type doesn't make it fundamentally useless, regardless of what Tufte thinks.
rostigerpudel 11y ago
At a scale of 100% I feel that 0.84% would be awfully few pixels. That said I agree that a bar chart might have been more appropriate but c'mon - pretty!
coldpie 11y ago
Yeah, this "radial bar graph" trend is really baffling. I suspect some charting software added it as a new chart type and everyone's trying it out. Hopefully it will die soon.

by panic 11y ago

ossreality 11y ago

Seriously? You don't know that 0 = 0%, 1 = 100%, .5 = 50%, etc? Also, it's not "out-of", it's just showing you what a radius of that length is equivalent to. If anything, it's "confusing" because it's a pie chart where the width of each wedge doesn't correspond to the percentage (instead it's the full area of the wedge)

VieElm 11y ago

Pie charts are already a terrible visualization, this is way worse. You're supposed to compare the area of these half circle shaped rotated slices easily? Should have just used a bar chart, in fact why wouldn't you use a bar chart? You could just have a single box and illustrate the percentage amounts by dividing the box up into different colors to indicate the percentages of a whole, but this? Nope. Tufte would probably not be pleased.

jnbiche 11y ago
Pie charts are excellent for showing parts of a whole, and very poor for any other type of visualization. Just because people are misusing a chart type doesn't make it fundamentally useless, regardless of what Tufte thinks.

rostigerpudel 11y ago

At a scale of 100% I feel that 0.84% would be awfully few pixels. That said I agree that a bar chart might have been more appropriate but c'mon - pretty!

coldpie 11y ago

Yeah, this "radial bar graph" trend is really baffling. I suspect some charting software added it as a new chart type and everyone's trying it out. Hopefully it will die soon.