Pizza dough example data — ss.data.doe1 • SixSigma

Experimental data for the scores given to a set of pizza doughs.

data(ss.data.doe1)

Format

A data frame with 16 observations on the following 6 variables.

repl: Replication id
flour: Level of flour in the recipe (- +)
salt: Level of salt in the recipe (- +)
bakPow: Level of Baking Powder in the recipe (- +)
score: Scored assigned to the recipe
ord: Randomized order

Source

See references.

Note

This data set is used in chapter 11 of the book ``Six Sigma with R'' (see References).

References

Cano, Emilio L., Moguerza, Javier M. and Redchuk, Andrés. 2012. Six Sigma with R. Statistical Engineering for Process Improvement, Use R!, vol. 36. Springer, New York. https://link.springer.com/book/10.1007/978-1-4614-3652-2/.

Examples

data(ss.data.doe1)
summary(ss.data.doe1)
#>       repl     flour salt  bakPow     score            ord      
#>  Min.   :1.0   -:8   -:8   -:8    Min.   :2.260   Min.   :1.00  
#>  1st Qu.:1.0   +:8   +:8   +:8    1st Qu.:3.987   1st Qu.:2.75  
#>  Median :1.5                      Median :5.515   Median :4.50  
#>  Mean   :1.5                      Mean   :5.124   Mean   :4.50  
#>  3rd Qu.:2.0                      3rd Qu.:6.332   3rd Qu.:6.25  
#>  Max.   :2.0                      Max.   :7.710   Max.   :8.00  
lattice::bwplot(score ~ flour | salt + bakPow , 
 data = ss.data.doe1, 
 xlab = "Flour", 
 strip = function(..., style) lattice::strip.default(..., strip.names=c(TRUE,TRUE)))