[R] Special characters in cell names

[Duncan Murdoch]

On 23/06/2021 11:38 a.m., Mahmood Naderan wrote:
> Hi
> I have a column in my data file which is "X/Y". With '/' I want to
> emphasize that values are the ratio of X over Y.
> Problem is that in the following command for a violin plot, I am not able
> to specify that '/' even with double quotes.
> 
> p <- ggplot(mydata, aes(x=W, y="X/Y")) + geom_violin(trim=FALSE)
> 
> However, if I change that column to "Y" and use
> 
> p <- ggplot(mydata, aes(x=W, y=Y)) + geom_violin(trim=FALSE)
> 
> Then the plot will be correctly shown.
> Any ideas for that?

I haven't tried, but I'd expect back quotes would work:


ggplot(mydata, aes(x=W, y=`X/Y`))


That's the normal way to quote a name in R.

Duncan Murdoch