Forest Products Laboratory

R function to calculate predictor sort confidence intervals on treatment means


An explanation of this function is provided in Verrill and Kretschmann (2017a), "A Reminder about Potentially Serious Problems with a Type of Blocked ANOVA Analysis," USDA Forest Products Laboratory research paper FPL-RP-683 (pdf).

The function is available here.

For further information, please contact Steve Verrill at or 608-231-9375.

Last modified on 1/12/17.

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