[R] Two == expressions in bquote

[Henrique Dallazuanna]

You are rigth Bert.

Thanks for the clarification.

On Mon, Jan 25, 2010 at 7:00 PM, Bert Gunter <gunter.berton at gene.com> wrote:
> I think that careful examination will show that Henrique's solution is not
> quite right: the text '=' character is slightly different than the symbol
> font character. This is admittedly nitpicking, but ...
>
> try instead:
>
> text(2,8,bquote(paste(delta==mu^2,phantom()==.(mu^2))))
>
> Cheers,
>
> Bert Gunter
> Genentech Nonclinical Biostatistics
>
>
> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On
> Behalf Of Henrique Dallazuanna
> Sent: Monday, January 25, 2010 12:10 PM
> To: Larry Hotchkiss
> Cc: r-help at r-project.org
> Subject: Re: [R] Two == expressions in bquote
>
> Try this:
>
> text(2,8, bquote(delta~'='~mu^2 == .(mu^2)))
>
> On Mon, Jan 25, 2010 at 6:00 PM, Larry Hotchkiss <larryh at udel.edu> wrote:
>> Hi,
>>
>> I want to put text on a plot containing something like: a = b^2 = <squared
> numeric value of b> using bquote.
>>
>> Example:
>>
>>  mu = 5
>>  plot(1:10,1:10)
>>  text(2,8, bquote(delta == mu^2))            # This works
>>  text(2.5,8, bquote(phantom(0) == .(mu^2)))  # but is unpredictable
>>
>>  text(2,8, bquote(delta == mu^2 == .(mu^2))) # This doesn't work
>>
>> The last text function returns the error:
>>
>>     Error: unexpected '==' in "  text(2,8, bquote(delta == mu^2 =="
>>
>> The first two text functions work in this example, using a default
> graphics window on a 64-bit Windows machine, and either R 2.11.0 development
> edition for 64-bit Windows or R 9.2.2 on the same machine ((x 86)).
>>
>> I don't mind the two statements except that when trying to automate this
> by using the base x coordinate + epsilon*max(x), for example --
>>
>>  x <- 1:10
>>  epsilon=0.05
>>  text(2+esilon*max(x),8, bquote(phantom(0) == .(mu^2)))
>>
>> for the x position on the 2nd text function, the position of the
> additional text is not predictable.
>>
>> Thanks,
>>
>> Larry Hotchkiss
>>
>> ______________________________________________
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>> 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.
>>
>
>
>
> --
> Henrique Dallazuanna
> Curitiba-Paraná-Brasil
> 25° 25' 40" S 49° 16' 22" O
>
> ______________________________________________
> R-help at 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.
>
>



-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O