Blog Archives

"My interpretation of [Leland Wilkinson’s] grammar [of statistical graphics]: —Data is the most…"

August 25, 2011
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"My interpretation of [Leland Wilkinson’s] grammar [of statistical graphics]:
—Data is the most…"

“My interpretation of grammar : —Data is the most important thing, and the thing that you bring to the table. —Geometric objects … what you actually see on the plot: points, lines, polygons, etc. ...

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Central Limit Theorem A nice illustration of the Central Limit…

October 20, 2010
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Central Limit Theorem
A nice illustration of the Central Limit…

Central Limit Theorem A nice illustration of the Central Limit Theorem by convolution.in R: Heaviside 0,1,0) }HH

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Here is how to improve your charts, graphs, maps, and…

October 2, 2010
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Here is how to improve your charts, graphs, maps, and…

Here is how to improve your charts, graphs, maps, and plots: Erase non-data ink. Erase redundant data ink. Maximize the ratio of data to ink. Show data variation, not design variation. The surface area of graphical elements should be directly proportio...

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extrapolation and interpolation The most important lesson I…

May 25, 2010
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extrapolation and interpolation
The most important lesson I…

extrapolation and interpolation The most important lesson I learned from this book:  regression is reliable for interpolation, but not for extrapolation.  Even further, your observations really need to cover the whole gamut of causal variables, inter...

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