[R] boxplot(list(m[,1],...,m[,c]))

Gavin Simpson ucfagls at ucl.ac.uk
Thu Jul 5 11:32:26 CEST 2001

> >>>>> "Richard" == Richard Dybowski <rdybowski at btinternet.com> writes:
>     Richard> Given a matrix m, I would like to obtain a boxplot of the
>     Richard> columns of m; in other words,
>     Richard> boxplot(list(m[,1],...,m[,ncol(m)])). At the moment, I am
>     Richard> using
>              <...>
>     Richard> for this purpose. Surely there must be a more eloquent way!
> Indeed!
> It's even in the `Examples' section of  help(boxplot) :
> Use
>         boxplot(data.frame(m))


Is it possible to do something similar to


but have different scales for each of the boxplots?

The reason I ask is that I have a series of lake chemistry measurements
and I want to plot a diagram with boxplots for a number of variables. 
The variables are measured in different units and some variables are
orders of magnitude bigger than others.  Any help with this would be

Using R 1.3.0 on NT4


Gavin Simpson
Environmental Change Research Centre
University College London			
26 Bedford Way

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