A statistical plot demonstrating quantity and std (or mean)

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Kyle Wang 2015-6-13

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https://ww2.mathworks.cn/matlabcentral/answers/223631-a-statistical-plot-demonstrating-quantity-and-std-or-mean

评论： Image Analyst 2015-6-13

What kind of statistical plot do you think can demonstrate both the quantity and std (or mean)?

For example, I have a dataset of a large population in different ages. I used clustering method to separate the population into ten groups based on the Euclidian metric of age. Now I want to examine the population quantity (counts) and age std (or mean) in each clustered group. Ideally, the std for each group will be very small, but their mean increases monotonically.

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Image Analyst 2015-6-13

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https://ww2.mathworks.cn/matlabcentral/answers/223631-a-statistical-plot-demonstrating-quantity-and-std-or-mean#answer_182528

What about a box plot http://www.mathworks.com/help/stats/boxplot.html?s_tid=srchtitle

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Kyle Wang 2015-6-13

编辑：Kyle Wang 2015-6-13

Thank you for the explanation, Image Analyst. The red line in the boxplot I think is median, not counts (the number of samples in the group).

Image Analyst 2015-6-13

You're right - I hadn't read the help completely. I guess the mean would be at the halfway point in the blue box. I guess you could draw a line for that if you wanted - unfortunately I don't see an option to have the mean line in there explicitly.

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