Hi Greg,
I think what you want is:
mtext (side=4, "median", col="firebrick4", at=median(walk_seconds))
"adj" defaults to 0.5 and is usually okay. It looks to me as though
mtext has taken your _character_ strings as non-numeric and then tried
to work something out with par("las"). Experts more fa
After calling plot, I draw a horizontal line representing the median with aline.
abline (h=median(walk_seconds), lty=1, lwd=2.0, col="firebrick4")
Then, I want to label that line as the median and do so by calling mtext.
mtext (side=4, "median", col="firebrick4", adj=“0.50”)
The dilemma is I do no
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