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Just a note

In plotting a stem-and leaf plot, as we have done here, it is assumed that each number has the same width. With old-fashioned mechanical typewrites and computers this was not a problem. However, with the increasing prevalence of proportionally-spaced fonts this may not be the case. If you are doing a stem and leaf plot yourself, Courier is good font to use as it is monospaced.

An alternate method you will sometimes come across is to substitute dots for the trailing digits - but this rather spoils the point of the exercise - which is to leave the original data intact for further inspection.

The following code produces much the same sort of result using R.

Gives 2 plots, one above another, not side-by side as shown here: