On Oct 22, 2010, at 9:15 AM, DrCJones wrote:
Hi,
Thanks for all of your replies!
David, a slightly modified version of what you gave did the trick:
hist(X,main = expression("["*Ca**""^paste(2,"+")*"]i"~'onsets'))
But I prefer the way '2+' is italicized in the solution Dennis gave:
I agree. Dennis' version was more compact. And it worked if simply
used as an argument to expression(), and it generalizes to
substitution. Superior in every way.
hist(X, main = bquote('[Ca'^'2+'*']i'~'onsets'), xlab = 'sec')
I think I understand it now - the '^' symbol must be followed by the
'*'
symbol to signify the end of font italicization;
Er, I don't see any italics in the output or implied by the expression.
and '~' must be used to
signify spaces. The only thing I still don't get is why square
brackets
rather than quotation marks surround the 'i' in the solution Claudia
gave:
hist(X, main=expression("[" * Ca^"2+" * "]" [i]~'onsets'), xlab =
'sec')
Because the "[]" function in plotmath does subscripting. I guess she
figured that was what you wanted.
You really need to study ?plotmath some more.
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