[R] boxplot $conf

[CJSwanepoel@t-online.de]

Hello R-Help,

Could anybody tell me how the boxplot-function calculates the upper
and
lower extremes of the notch contained in $conf which I assume is the
confidence interval? Is it reliable for data which is not normally
distributed? If not, how can I calculate and boxplot a specific
confidence interval for not normally distributed data in R (increasing
the sample size does not normalize the sample distribution)?

Any help would be greatly appreciated.

Regards.

Chris Swanepoel
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