[R] single character in R, and how to manipulate it

[Jim Lemon]

Hi Jinsong,
Maybe "srt" will do what you want. As you noted non-orthogonal
rotations may not work on some devices. You may be able to download
mirror fonts from places like fontmirror.com, but it more complicated.

Jim

On Thu, Mar 30, 2023 at 7:25 PM Jinsong Zhao <jszhao using yeah.net> wrote:
>
> Hi there,
>
>
> I just noticed that "crt" is a graphical parameter, which is stated as follows in the help page of "par":
> A numerical value specifying (in degrees) how single characters should be rotated. It is unwise to expect values other than multiples of 90 to work...
>
>
> However, I did not find any code example to demo the usage of "crt", and even know how to present a *single character* in R. It seems that R treats "A" as a string. If I wanted to rotated it in a plot, I could use "text" function with "srt" argument. But how to use "crt"?
>
>
> Another related question, how to mirror a character in R plot? For example, the mirror of "R" is something like "Я".
>
>
> Any hint? Thanks in advance.
>
>
> Best,
> Jinsong
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>
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