On 12-05-13 12:27 AM, David Winsemius wrote:
On May 12, 2012, at 6:27 PM, Peter Ehlers wrote:
Hi Bert,
I think the 'cex=' argument applies to the outermost 'atop()'.
It then applies that size specification to each of the two
components of the atop(a,b). If one of the components is itself
another atop(a,b), then the individual parts are sized downward
to produce the required cex for the unit.
As for the 'cex=1:2' specification, only the first value is used.
Isn't there also a 0.67 factor being applied to whatever was the
"outside" size prior to being used for the atop arguments? So the
inner atop arguments get that applied twice if I understand correctly.
text(1,1,labels=expression(atop(
atop("top level one", "top level two"),
"another level")
) )
I did notice that the cr-linefeed (perhaps unintentionally being
inserted by a mail client) seemed to be "working" at least on my Mac :
plot(1,1)
text(1,1,labels=expression("another
level")
)
Whereas it is well known that "\n" will appear as two characters, \n,
and not be interpreted as a special.
I think that only works when the newline (which could equally be \n) is
within a string; if you want a symbol over another symbol you need the atop.
I.e.
plot(1,1)
text(1,1,labels=expression("another\nlevel"))
is the same as what you typed, but
plot(1,1)
text(1,1,labels=expression(paste("another","\n", "level")))
won't do anything useful.
Duncan Murdoch
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