>>>>> Ben Bolker <bbol...@gmail.com>
>>>>> on Fri, 04 Feb 2011 10:44:12 -0500 writes:
> ?axTicks says:
> usr: numeric vector of length four, defaulting to
> ‘par("usr")’ giving horizontal (‘x’) and vertical (‘y’)
> user coordinate limits.
> but this is not how the function is implemented -- in
> fact 'usr' should be a vector of length two corresponding
> to the appropriate elements of par("usr") [1:2 if side is
> 1 or 3, 3:4 if side is 2 or 4].
> A patch for src/library/graphics/man/axTicks.Rd against
> the latest SVN is attached (I hope it makes it through).
> I also included an extended example of how to use
> axTicks without reference to an existing plot in the
> logarithmic axis case: it took me quite a bit of digging
> in documentation and source code to figure out how to do
> this for myself, so I think it would be useful to others
> ...
Thanks a lot, Ben!
I've also added the new example .. though slightly modified.
Notably I'm a tiny bit disappointed ;-) that you were not aware of
the existence of the extendrange() function ...
Martin Maechler
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