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Feb 15, 2015 at 23:29 comment added Glen_b It can be used directly with continuous data, since all you need to do is compute the median, upper and lower quartiles, minimum and maximum and a couple of quantities based on the quartiles. The example in my answer above is done "directly on continuous data". It's really designed for the continuous case (but could also be used with discrete data, like counts, say). The best way to understand it is calculate a few in different situations. (It may make sense to also calculate 5 or 6 other displays of the same data to see what they all tell you.)
Feb 15, 2015 at 21:18 comment added cross can boxplots be used with continuous data by default, or the continuous data must first be placed into grouped frequency distribution and then the boxplot can be created from there. (sorry if the question is stupid :( )
Feb 14, 2015 at 1:10 history edited Glen_b CC BY-SA 3.0
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Feb 13, 2015 at 12:54 vote accept cross
Feb 13, 2015 at 7:19 history edited Glen_b CC BY-SA 3.0
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Feb 13, 2015 at 7:13 history edited Glen_b CC BY-SA 3.0
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Feb 13, 2015 at 7:02 history edited Glen_b CC BY-SA 3.0
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Feb 13, 2015 at 6:54 history edited Glen_b CC BY-SA 3.0
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Feb 13, 2015 at 6:45 history answered Glen_b CC BY-SA 3.0