Hi all, let me give a simple example:

b<-20
I would like to print ylab as "P20" where "P" is printed in Italic font. When I 
do the following:

plot(1, ylab=expression(paste(italic("P"),b,sep="")))

I got y axis label printed as "Pb" instead of "P20". What is the best solution 
to print platmath symbols with value of the variable at the same time?

Thanks

John

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