Design factors and responses used in the examples of Box and Meyer (1986)

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A data frame with 16 observations on the following 19 variables.

- X1
numeric vector. Contrast factor.

- X2
numeric vector. Contrast factor.

- X3
numeric vector. Contrast factor.

- X4
numeric vector. Contrast factor.

- X5
numeric vector. Contrast factor.

- X6
numeric vector. Contrast factor.

- X7
numeric vector. Contrast factor.

- X8
numeric vector. Contrast factor.

- X9
numeric vector. Contrast factor.

- X10
numeric vector. Contrast factor.

- X11
numeric vector. Contrast factor.

- X12
numeric vector. Contrast factor.

- X13
numeric vector. Contrast factor.

- X14
numeric vector. Contrast factor.

- X15
numeric vector. Contrast factor.

- y1
numeric vector. Log drill advance response.

- y2
numeric vector. Tensile strength response.

- y3
numeric vector. Shrinkage response.

- y4
numeric vector. Yield of isatin response.

Box, G. E. P and R. D. Meyer (1986). "An Analysis of Unreplicated
Fractional Factorials". *Technometrics.* Vol. 28. No. 1. pp. 11–18.

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