[R] using subscripts in a plot title with 2 lines

[Liaw, Andy]

If I understood your problem correctly, one ugly way of getting around this
is to use call mtext() twice to put the two lines in the title area, using
the line argument to mtext to control the location of the lines.  E.g.,
something like:

plot(1, main="")
mtext(expression(IC[50]), line=3, side=3, cex=1.2)
mtext("of My Data", line=1.5, side=3, cex=1.2)

HTH,
Andy

> From: Rajarshi Guha
> 
> Hi,
>   I'm making a plot in which the title takes up two lines. The title
> contains a subscript but when I look at the plot it does'nt 
> seem tocome
> out properly. The code I'm using is:
> 
>    xtxt = expression(paste('Observed -log( ', IC[50], ' )'))
>    ytxt = expression(paste('Predicted -log( ', IC[50], ' )'))
>    mtxt = expression(paste('Plot of Observed vs. Predicted -log(',
> IC[50], ') Values for the PDGFR\nDataset'))
> 
>    plot(tset$V2, tset$V3, xlim = c(-2,2), ylim = c(-2,2),
>     pch = 19, col = "blue", 
>     main=mtxt,
>     xlab = xtxt,
>     ylab = ytxt)
> 
> Removing the IC[50] term makes it come out OK. 
> Is there any way to get around this?
> 
> Thanks,
> 
> -------------------------------------------------------------------
> Rajarshi Guha <rxg218 at psu.edu> <http://jijo.cjb.net>
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