The explanatory variables from the Modified Data on Wood Specific Gravity analyzed in Rousseeuw and Leroy (1987).
data(wood, package="robustbase") contains the same
data, and additionally the y-variable.
This data frame contains the following variables:
number of fibers per square milimeter in Springwood (coded by dividing by 1000).
number of fibers per square milimeter in Summerwood (coded by dividing by 10000).
fraction of Springwood.
fraction of light absorption by Springwood.
fraction of light absorption by Summerwood.
Rousseeuw, P. J., and Leroy, A. M. (1987). Robust Regression and Outlier Detection. New York: Wiley.
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