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A graphical display to summarize the distribution of a sample. It displays five numbers plus (possibly) some outliers - those five points being the median, hinges (approximate quartiles), and the largest and smallest value not counting any points marked as outliers.

31 votes

Is there a boxplot variant for Poisson distributed data?

(sqrt(B1), col="red", main="un-adjusted boxplot of square root of data") adjbox( B1, col="red", main="adjusted boxplot of data") In this contamination model, B1 has essentially a log-normal distribution … In this example, the approach of using the standard boxplot on the square root of the data finds 13 outliers (all on the right), whereas the adjusted boxplot finds 10 right and 14 left outliers. …
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3 votes

Making boxplots of hourly data in R

Try the functional boxplot function in the fda package. …
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