[R] How to refer a variable in quotes

[Bert Gunter]

1. Please spend some time with an R tutorial or two to become familiar
with R basics.

2. Please do not post in HTML. This is a plain text email list.

3. See e.g. ?sprintf  or ?paste  for your problem.

Cheers,
Bert


Bert Gunter

"The trouble with having an open mind is that people keep coming along
and sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )


On Wed, Mar 2, 2016 at 2:52 PM, Jinggaofu Shi <js3786 at drexel.edu> wrote:
> Hi, there
> I am new to R, here is an urgent question.
> I want to save several graphs by a for loop. But I don't know how to refer
> the variable in the quotes.
> Here is my code.
>
> g<-c("g1","g2","g3","g4","g5","g6","g7","g8","g9")
> for (u in 1:9) {pdf("g[u]".pdf")
> + plot(1,1, xlim=range(x), ylim=c(-5,5), type='n', xlab ="Femur length
> (mm)", ylab = "Z-Score")
> + mtext("g[u]", side = 4)
> + for (i in z) {
> + lines(x,(log(i)-(m[u]*log(x)+c[u]))/r[u])
> + miny<-(log(i)-(m[u]*log(max(x))+c[u]))/r[u]
> + maxx <- exp((log(i)-c[u]+5*r[u])/m[u]);
> + if (miny > -5) {text(max(x),miny+0.3,i)
> + }else {text(maxx+2, -5+0.3,i)}
> +  }
> + dev.off()
> + }
>
> In the second line, I want to refer the variable 'g[n]' to the file name
> and fifth line i also want to refer the variable as a note. How should I
> do? Thank you very much!
>
> --
> Sincerely,
> Jinggaofu Shi
> 4029 Spring Garden Street
> Philadelphia, PA 19104
> Email: shijinggaofu at gmail.com
> Phone: 215-847-9145
>
>         [[alternative HTML version deleted]]
>
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