[R] use expression() in a loop

[Sundar Dorai-Raj]

Nanye Long said the following on 8/18/2008 3:00 PM:
> Hi all,
> 
> I want to do plot() in a loop to make 10 graphs, so I have some code like
> 
> for (i in 1:10) {
>    plot(... ... , xlab = expression(g[i]) )
> }
> 
> I expect g_1, g_2, and so on appear on x labels, but it simply prints
> g_i for each graph. Does anybody know how to get around this problem?
> Thanks.
> 
> NL
> 
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Try:

par(mfrow = c(2, 5))
for (i in 1:10) {
   plot(1, 1, xlab = bquote(g[.(i)]))
}

HTH,

--sundar