[R] how to customize boxplot

From: Cornelis de Gier <cwdegier_at_gmail.com>
Date: Thu, 31 Jan 2008 16:09:36 +0100


Dear List,

I'd like to make boxplots of a large number of observations (+/- 20.000), which are distributed log-normal and right skewed. The problem is that with standard boxplots a too large number of observations are displayed as outliers. I also tried to display the log of the observations, but even then there are to may outliers to my taste. So I'd like to change the standard IQR box to a box which displays the 5th tothe 95th percentile instead of the standard 25th to 75th percentile.

Is this possible and if so, how? I use both R and Splus, so I'd like to know for both flavours of S.

Regards,

Cornelis



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