[R] 3d scatterplot with error bars

[hadley wickham]

> Yes, type
>
> vignette("s3d", package="scatterplot3d")
>
> and see page 22.

which of course won't work unless you have scatterplot3d installed,
but I wonder if vignette() could be modified to try to find the
vignette on the web if the package isn't installed.  It would make it
a little easy to read about a package before installing it.

Hadley

-- 
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