Hi
You have encountered the fact that, while there are "[" methods for
grid
unit objects, there are NOT any "[<-" methods for grid unit
objects.
I guess that needs to go (back) onto my todo list.
A workaround for your simple example is ...
unit.c(testUnits[1:2], testUnit2, testUnits[4:5])
... though I can imagine that getting pretty tedious in more complex cases.
Paul
pbarros wrote:> Hi,
>
> I want to do subscripted assignment of grid units, but I cannot find a
> straightforward way of doing it (and I have searched all forums and places
I
> could think about, including Paul Murrell,s page). The usual subscripted
> assignment operator does replace the numeric part, but does not update the
> attributes. Before I write my own function, manipulating attributes etc I
> would like to know if such a function already exists (I am sure it does).
> What I want to do can be reflected as in the code below:
>
> testUnit <- unit(1, "lines")
>> testUnit
> [1] 1lines
>> testUnits <- rep(testUnit, 5)
>> testUnits
> [1] 1lines 1lines 1lines 1lines 1lines
>> testUnit2 <- unit(0.5, "grobwidth",
textGrob("Testing"))
>> testUnits[3] <- testUnit2
>> testUnits
> [1] 1lines 1lines 0.5lines 1lines 1lines
>
> I would like to obtain
> [1] 1lines 1lines 0.5grobwidth 1lines 1lines
>
> Any tips?
>
> Thanks,
> Pedro
> --
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> Sent from the R help mailing list archive at Nabble.com.
>
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--
Dr Paul Murrell
Department of Statistics
The University of Auckland
Private Bag 92019
Auckland
New Zealand
64 9 3737599 x85392
paul at stat.auckland.ac.nz
http://www.stat.auckland.ac.nz/~paul/