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Comments

Rick Wicklin

Excellent points. Breaking the original maosaic plot into a bar chart AND a line plot makes the most sense. You can do something similar to improve a Bloomburg chart that shows participation in social media for various age groups:
http://blogs.sas.com/iml/index.php?/archives/55-How-Does-Participation-in-Social-Media-Vary-with-Age.html

Martin

Great post!

Can you please provide the data you reverse engineered from the graphics. I am curious to see what happens when you rotate the mosaic or sort the categories by size and/or proportion.

Kaiser

Martin: some of the data are just guessestimates.

AgeGroup,PhoneOS,PercentOfTotal
18-24,Android,0.06
18-24,Blackberry,0.04
18-24,iPhone,0.04
18-24,Palm,0.01
18-24,Symbian,0.002
18-24,Windows,0.01
25-34,Android,0.08
25-34,Blackberry,0.07
25-34,iPhone,0.08
25-34,Palm,0.02
25-34,Symbian,0.01
25-34,Windows,0.015
35-44,Android,0.06
35-44,Blackberry,0.06
35-44,iPhone,0.06
35-44,Palm,0.02
35-44,Symbian,0.008
35-44,Windows,0.015
45-54,Android,0.04
45-54,Blackberry,0.05
45-54,iPhone,0.04
45-54,Palm,0.02
45-54,Symbian,0.01
45-54,Windows,0.01
55-64,Android,0.03
55-64,Blackberry,0.04
55-64,iPhone,0.04
55-64,Palm,0.02
55-64,Symbian,0.006
55-64,Windows,0.01
65-up,Android,0.01
65-up,Blackberry,0.01
65-up,iPhone,0.02
65-up,Palm,0.01
65-up,Symbian,0.003
65-up,Windows,0.001

samuel

For your consideration, I just spotted a chart here: http://online.wsj.com/article/SB10001424052748703529004576160764037920274.html?mod=WSJ_Tech_LEADTop Percentages add up to 200%, as a tiny foot-note explains. Ok, maybe there are technical issues that justify that, but, to a general audience, couldn't have they used the usual concept of per*cent*ages over *one hundred*. When I see 85% for US$, "an overwhelming majority" comes to my mind, not "barely half".

Martin

Thanks Kaiser,

your guessestimates work fine for this purpose. Take a look at the rotated mosaic plot. I think it can make the same point as your suggested improvement.

vigilon

You are perfectly right!

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