[R] One sided confidence limits for the regression line

David Winsemius dwinsemius at comcast.net
Mon Jan 14 06:17:10 CET 2013

On Jan 13, 2013, at 8:19 PM, li li wrote:

> Hi all,
>  I am trying to plot the one-sided confidence limits for the regression
> line.
> It seems it is ok to use predict function to compute the two sided
> confidence
> limits. Does any one know a easy way to compute the one sided confidence
> limits?

Hypotheses can be "one-sided" or "two-sided". Except for the confidence intervals around observations of 0 in count data, I'm not sure what you mean by a "one-sided confidence interval". My uncertainty certainly increases when you talk about such around regression line estimates.


David Winsemius
Alameda, CA, USA

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