[R] Plot math symbol with string and number

[Bert Gunter]

?plotmath

On Sun, Aug 16, 2020, 14:53 John Smith <jswhct using gmail.com> wrote:

> Dear Helpers,
>
> I would like to make plots with titles for different data sets and
> different parameters. So a useful title should combine data name
> and parameter for clarity. The following is a simplified code example with
> two plots. The first title doesn't show sigma as a math symbol, while the
> second one doesn't contain the s value as a numeric value - I could
> manually change the s value, but when there are many different s values,
> this is not a good solution. Thanks!
>
> s <- 1
> y <- rnorm(100)
> plot(y, main=paste("data", "sigma=", s))
> plot(y, main=expression(paste("data", sigma,"=", s)))
>
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>
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