add mean value to histogram in R!
I would like to plot a histogram with mean (average) value on it (mark it for example by blue, bold line).
I try to do it using plot command, but even if I add parameter: "add=TRUE"
it desn't work.
add mean value to histogram in R!
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I would like to plot a histogram with mean (average) value on it (mark it for example by blue, bold line).
I try to do it using plot command, but even if I add parameter: "add=TRUE"
it desn't work.