That's pretty similar to call axis function, i.e.
plot(rnorm(100), yaxt="n", bty="n")
usr <- par("usr")
## lines(usr[c(1,2)], usr[c(3,3)], xpd = TRUE)
axis(1, ...) # where 1 is bottom, 2 left, 3 top, and 4 right sides of
the plot box)
Best
Fer
On 11/28/24 14:52, Duncan Murdoch wrote:
> On 2024-11-28 8:36 a.m., Michael Dewey wrote:
>> To make the plot clearer I have removed the axes but I wish to remove
>> all the boz except the bottom horizontal line. Using the bty parameter
>> does not seem to enable me to just leave the horizontal line at the
>> foot. I can get the "l" version to remove everything except the left
>> hand side and the base. I could also remove the entire box but that
>> looks odd. Am I reading the documentation incorrectly or is it really
>> impossible?
>>
>
> It's not something that `bty` can specify or `box()` can do, but you
> can draw a line using lines() or segments(). For example:
>
> plot(rnorm(100), yaxt="n", bty="n")
> usr <- par("usr")
> lines(usr[c(1,2)], usr[c(3,3)], xpd = TRUE)
>
> You might not even need the lines() call if you don't care how far the
> axis extends.
>
> Duncan Murdoch
>
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