R help - Feb 2024 - gathering denominator under frac

?s 10:01 de 02/02/2024, Troels Ring escreveu:
> Hi friends - I'm plotting a ratio of bicarbonates i ggplot2 and
> 
> ylab(expression(paste(frac("additive BIC","true
BIC")))) worked OK - but
> now I have been asked to put the chemistry instead - so I wrote
> 
> 
?ylab(expression(paste(frac("additive",HCO[3]^"-","true",HCO[3]^"-"))))
> - and frac saw that as additive = numerator and HCO3- = denominator and 
> the rest was ignored-
> 
> So how do I make frac ignore the first ","? and print the
fraction as I
> want?
> 
> 
> All best wishes
> Troels
> 
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> 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.
Hello,

This seems to work. Instead of separating the two numerator strings with 
a comma, separate them with a tilde. The same goes for the denominator.
And there is no need for double quotes around "additive" and
"true".


library(ggplot2)

g <- ggplot(iris, aes(Sepal.Length, Sepal.Width, color = Species)) +
   geom_point()

g + ylab(expression(paste(frac(
   additive~HCO[3]^"-",
   true~HCO[3]^"-"
))))



Hope this helps,

Rui Barradas


-- 
Este e-mail foi analisado pelo software antiv?rus AVG para verificar a presen?a
de v?rus.
www.avg.com

... or if I understand correctly, simply

expression(frac(additive ~ HCO[3]^"-",
                           true ~ HCO[3]^"-" )))

Cheers,
Bert

On Fri, Feb 2, 2024 at 3:06?AM Rui Barradas <ruipbarradas at sapo.pt>
wrote:
> ?s 10:01 de 02/02/2024, Troels Ring escreveu:
> > Hi friends - I'm plotting a ratio of bicarbonates i ggplot2 and
> >
> > ylab(expression(paste(frac("additive BIC","true
BIC")))) worked OK - but
> > now I have been asked to put the chemistry instead - so I wrote
> >
> >  
ylab(expression(paste(frac("additive",HCO[3]^"-","true",HCO[3]^"-"))))
> > - and frac saw that as additive = numerator and HCO3- = denominator
and
> > the rest was ignored-
> >
> > So how do I make frac ignore the first ","  and print the
fraction as I
> > want?
> >
> >
> > All best wishes
> > Troels
> >
> > ______________________________________________
> > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> > 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.
> Hello,
>
> This seems to work. Instead of separating the two numerator strings with
> a comma, separate them with a tilde. The same goes for the denominator.
> And there is no need for double quotes around "additive" and
"true".
>
>
> library(ggplot2)
>
> g <- ggplot(iris, aes(Sepal.Length, Sepal.Width, color = Species)) +
>    geom_point()
>
> g + ylab(expression(paste(frac(
>    additive~HCO[3]^"-",
>    true~HCO[3]^"-"
> ))))
>
>
>
> Hope this helps,
>
> Rui Barradas
>
>
> --
> Este e-mail foi analisado pelo software antiv?rus AVG para verificar a
> presen?a de v?rus.
> www.avg.com
>
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> 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.
>
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