[R] Greek letters with subscript numbers on x-axis

[William Dunlap]

You can use
   labels=as.expression(lapply(1:9, function(i)bquote(hat(lambda)[.(i)])))

Bill Dunlap
TIBCO Software
wdunlap tibco.com

On Wed, Jun 3, 2015 at 12:39 PM, Frank S. <f_j_rod at hotmail.com> wrote:

> Hi everyone, I have allocated greek letters with subscript numbers on
> x-axis of my R plot this way:
>  plot(10:18, 30:38, lwd=2, xlim=c(10,18), ylim=c(30,38),  xaxt="n",
> xlab="weights", ylab="value")
> points(10:18, 30:38, pch=19)
> axis(1, at=10:18, labels=c(expression(hat(lambda)[1]),
> expression(hat(lambda)[2]), expression(hat(lambda)[3]),
>
> expression(hat(lambda)[4]),expression(hat(lambda)[5]),expression(hat(lambda)[6]),
>
> expression(hat(lambda)[7]),expression(hat(lambda)[8]),expression(hat(lambda)[9])),
> padj = 0.25) However, as you see in the last lines, it's not an efficient
> code. I think it could be done more efficiently with a loop. I've searched
> about this question and I've found some very similar question, but the
> given answer does not work (with do.call and lapply). Maybe another
> functions like substitute or parse. Does anybody can help me? Thanks a
> bunch!! Frank S.
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>
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