[R] Using square brackets in a ploted expression

[Monteiro, Jose]

Dear Users,

I have the following text plotted inside a graphic:


text(16200, 2.8*0.97, expression(NH[3]==0.33-1.1 %*% 10^-5 %*% day),

adj=c(1,1))

I need to include square brackets in the expression around the ammonia to have it plotted like that: [NO3-]. I tried instinctively to use %[% to plot the brackets, but it did not work. Does anybody of you know what is the correct syntax to plot square brackets inside an expression?

Thank you in advance,
José

[[alternative HTML version deleted]]

[Uwe Ligges]

On 11.01.2013 13:43, Monteiro, Jose wrote:
> Dear Users,
>
> I have the following text plotted inside a graphic:
>
>
> text(16200, 2.8*0.97, expression(NH[3]==0.33-1.1 %*% 10^-5 %*% day),
>
> adj=c(1,1))
>
> I need to include square brackets in the expression around the ammonia to have it plotted like that: [NO3-]. I tried instinctively to use %[% to plot the brackets, but it did not work. Does anybody of you know what is the correct syntax to plot square brackets inside an expression?

See ?plotmath:

plot(1, main=expression(group("[", NO[3]^"-","]")))

Uwe Ligges

> Thank you in advance,
> José
>
> [[alternative HTML version deleted]]
>
>
>

> ______________________________________________
> R-h...@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>

______________________________________________
R-h...@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.