One can use sapply(data_frame, min) and similarly for max and median.
Another possibility is to use quantile and matplot like this
ir <- iris[1:3, 1:4] # sample data using builtin iris data set
mat <- t(sapply(ir, quantile, c(1, .5, 0)))
matplot(mat, type = "hp", lty = 1, pch = 20, xaxt = "n",
Hello, all,
I have a dataframe of three rows and umpteen columns. I want to show the
maximum, minimum, and median with a vertical line and a central dot (I'd
use a boxplot, but with only three data points, that's overkill; I can't
just use points, because of overlap and some of the other data
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