Re: [R] Weighted box or violin plots in Lattice?

From: Deepayan Sarkar <>
Date: Mon, 09 May 2011 10:05:30 +0530

On Mon, May 9, 2011 at 2:20 AM, Thomas Lumley <> wrote:
> On Mon, May 9, 2011 at 6:35 AM, Deepayan Sarkar
> <> wrote:
>> On Sat, May 7, 2011 at 1:55 AM, Raphael Mazor <> wrote:
>>> Is it possible to create weighted boxplots or violin plots in lattice?
>>> It seems that you can specify weights for panel.histogram() and
>>> panel.densityplot(), but not for panel.bwplot or panel.violin().
>> Not for panel.histogram() either.
>> It's not immediately obvious how you would get weighted boxplots.
> The way the survey world does it is to get weighted quantiles and work
> from them, as in survey:::svyboxplot().  The only tricky decision is
> what to do with outliers, since I haven't been able to think of any
> good way of indicating weights on them.

So I guess with bwplot() one would have to write a version of boxplot.stats() that uses weighted quantiles, and then write a modified panel function.

A crude approximation (if the weights don't vary too much) may be to scale and round the weights to integers, and then repeat each data point; e.g., newx <- rep(x, w), etc.

-Deepayan mailing list PLEASE do read the posting guide and provide commented, minimal, self-contained, reproducible code. Received on Mon 09 May 2011 - 04:38:14 GMT

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