[R] legend in plot

[Jim Lemon]

Hi Naresh,
Have a look at the emptyspace function in the plotrix package. This
returns the center of the largest empty space on the plot.

Jim

On Thu, May 5, 2022 at 10:41 PM Naresh Gurbuxani
<naresh_gurbuxani using hotmail.com> wrote:
>
> Is it possible to define legend in the plot command?  That will ensure that legend is correctly associated with the points or lines in the plot.
>
> # I can do this
> x <- seq(-3, 3, by = 0.01)
> plot(x, x, type = "l")
> lines(x, x^2, lty = 2, col = 2)
> # In legend command, I need to remember that x^2 is lty = 2 and col = 2
> legend("bottomright", legend = c("x", expression(x^2)), lty = c(1, 2), col = c(1, 2), bty = "n")
>
> # I want to do something like this
> plot(x, x, type = "l", label = "x")
> lines(x, x^2, lty = 2, col = 2, label = expression(x^2))
> # legend command already knows the legend for each line
> legend("bottomright", bty = "n")
>
> Thanks,
> Naresh
> ______________________________________________
> R-help using 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.