## How to control the length of the whisker in a box plot produced by SGPLOT?

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# How to control the length of the whisker in a box plot produced by SGPLOT?

How to control the length of the whisker in a box plot produced by SGPLOT?

In GPLOT, we can specify a percentile to control the length of the whiskers in box plots within the range 00 through 25 by using <00…25> in "Interpol=BOX<option(s)><00...25>".  How can we do the same in SGPLOT? By default it seems the whiskers in a box plot by SGPLOT extends to 1.5* IQR (Intra-quartile range). Is there an easy way (option) to adjust the length of a whisker in SGPLOT?

Thanks,

Charlie

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Solution
‎11-25-2013 01:19 PM
SAS Super FREQ
Posts: 1,211

## Re: How to control the length of the whisker in a box plot produced by SGPLOT?

Such an option has been added for SAS 9.4.  With SAS 9.3, you can get a box plot with custom whisker lengths by computing your own statistics and using SGPLOT to plot them.  This blog article describes such a case.

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Solution
‎11-25-2013 01:19 PM
SAS Super FREQ
Posts: 1,211

## Re: How to control the length of the whisker in a box plot produced by SGPLOT?

Such an option has been added for SAS 9.4.  With SAS 9.3, you can get a box plot with custom whisker lengths by computing your own statistics and using SGPLOT to plot them.  This blog article describes such a case.

Occasional Contributor
Posts: 17

## Re: How to control the length of the whisker in a box plot produced by SGPLOT?

Thanks Sanjay for the quick response! good to know that such option as been added for SAS 9.4

The mean markers cannot be produced directly using the "Interpol=BOX<option(s)><00...25>" in GPLOT, is it true? we may have to overlay a scatter plot with mean markers with a box plot in GPLOT?

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