R: Chemical Reaction Data

ChemReact {rsm} | R Documentation

## Chemical Reaction Data

### Description

These data are from a central composite design with 2 factors in 2 blocks. The design variables are in actual, not coded, form.

### Usage

    ChemReact
    ChemReact1
    ChemReact2

### Format

A data frame with 14 observations on the following 4 variables.

`Time`

  a numeric vector; design variable with settings of 80, 85, and 90.

`Temp`

  a numeric vector; design variable with settings of 170, 175, and 180.

`Block`

  a factor with levels `B1` `B2`. Block `B1` is a first-order design with 3 center points. Block `B2` consists of axis points and 3 more center points.

`Yield`

  a numeric vector; response variable: yield of the chemical process.

`ChemReact1` and `ChemReact2` are the separate blocks. Each has 7 runs and three variables (`Block` is excluded from these).

### Source

Table 7.6 of Myers, RH, Montgomery, DC, and Anderson-Cook, CM (2009), Response Surface Methodology (3rd ed.), Wiley.

[Package rsm version 2.9 Index]