Jitter options & parameters (for plotting points) #10
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When >0, parameters `x-jitter`, `y-jitter`, and `z-jitter` will add random noise to each point along the specified dimension. New points lie within a rectangle with width `x-jitter`, height `y-jitter`, and depth `z-jitter` centered at each point's original location, but kept within the bounds for x-min, x-max, etc. given to `points` or `points3d`.
| @@ -51,6 +54,10 @@ For example, a scatter plot of points sampled uniformly from the surface of a sp | |||
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| (plot3d (points3d (map vector xs ys zs) #:sym 'dot) | |||
| #:altitude 25)] | |||
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| When @(racket x-jitter), @(racket y-jitter), or @(racket z-jitter) is non-zero, | |||
| each point @(racket p) is translated to a random location inside a rectangle centered at @(racket p) with width @(racket x-jitter), height @(racket y-jitter), and depth @(racket z-jitter). | |||
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I think the docs should mention/discuss use cases. Otherwise, it's not clear when one might want this. |
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Good points, thanks |
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This blog post has a nice example of jitter use: http://kieranhealy.org/blog/archives/2015/02/03/another-look-at-the-california-vaccination-data/ |
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Should I add a margin note for this? (and maybe, Typing with Pleasure) |
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Sounds like a good idea. |
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Removed the extreme caution & added the external links. |
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LGTM |
bennn
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Jan 9, 2016
Jitter options & parameters (for plotting points)
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New optional arguments for
pointsandpoints3d, and new parameters to match.When
> 0, parametersx-jitter,y-jitter, andz-jitterwill add random noise to each point along the specified dimension.New points lie within a rectangle with width
x-jitter, heighty-jitter, and depthz-jittercentered at each point's original location, but kept within the bounds for x-min, x-max, etc. given topointsorpoints3d.Inspired by R's ggplot2. I think this is a nice substitute for boxplots and violin plots.
Example: