Hi there,
I happened to find the expression(!abc) produces !(abc) when I used
plotmath in a text annotation. Here is the mini-example.
> plot(1, type = "n")
> text(1,1, expression(!abc))
I don't find "!" in plotmath document.
By the way, how to reduce the space between two adjacent strings,
something opposite to "~~". I mean, to get a space that is narrower than
"~" but wider than "*".
Best,
Jinsong
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