tensile: The tensile strength of Kraft paper measure against the...

In hcc: Hidden correlation check

Description

The tensile strength of Kraft paper was measured against the percentage of hardwood in the batch of pulp from which the paper was produce.

Usage

data(tensile)

Format

A data frame with 19 observations on the following 2 variables.

Y

the tensile strength of Kraft paper

x

hardwood in the batch of pulp

Source

Hand, D.J., Daly, F., Lunn, A.D., McConway, K.J. and Ostrowski, E. (1993). A Handbook of Small Datasets. Chapman and Hall.

References

Joglekar, G., Schuenemeyer, J.H. and LaRiccia, V. (1989) Lack-of-fit testing when replicates are not available. American Statistician, 43, 135-143.

Examples

data(tensile)
tmod1 <- lm(Y~x+I(x^2), tensile)
x<-tensile[,2]
res <- resid(tmod1)
hctest(x, res)

hcc documentation built on May 2, 2019, 2:08 a.m.