[Rd] pairs(NxK_Matrix,panel=qqplot) (PR#803)

[ripley@stats.ox.ac.uk]

On Fri, 5 Jan 2001 mvondavier@ets.org wrote:

> Full_Name: Matthias von Davier
> Version: 1.2.0
> OS: linux
> Submission from: (NULL) (144.81.31.148)
>
>
> pairs(NxK_Matrix,panel=qqplot)
>
> produces a message
>
> Error in pairs.default(NxK_Matrix,panel=qqplot) :
>    The panel function made a new plot

And the bug is?  I am baffled!  Please read the section on BUGS in the FAQ.
Acting as documented is not a bug, nor is giving an error message when a
function is used incorrectly.

A panel function is documented as

   panel: `function(x,y,...)' which is used to plot the contents of
          each panel of the display.

Note *contents*.  I don't think qqplot qualifies, so you get a message
about your error.  You probably want (untested)

panel.qqplot <- function(x, y, ...)
{
   res <- qqplot(x, y, ..., plot.it = FALSE)
   points(res$x, res$y)
}

-- 
Brian D. Ripley,                  ripley@stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595


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