[R] Don't understand plotmath behaviour (bug?)

[Wladimir Eremeev]

Hello, all

 Please, consider the following pieces of code.

 1.
 v<-0.5
 text(x=2,y=2,eval(substitute(expression(bold(S==V)),list(V=formatC(v,format="f",digits=2)))))

 This plots "S=0.5" in bold. Both "S" and "0.5" are bold.

 2.
 v<-0.5
 text(x=2,y=2,eval(substitute(expression(bold(S==V)),list(V=round(v,2)))))

 Here, only "S" is bold, 0.5 is usual, non-bold.

 Why?

 Thank you very much for attention and explanations.
 
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Best regards,
Wladimir                mailto:wl at eimb.ru