Gage R&R data

Example data for Measure phase of the Six Sigma methodology.

data(ss.data.rr)

Format

A data frame with 27 observations on the following 5 variables.

prototype

a factor with levels prot #1 prot #2 prot #3

operator

a factor with levels op #1 op #2 op #3

run

a factor with levels run #1 run #2 run #3

time1

a numeric vector

time2

a numeric vector

Source

See references.

Note

This data set is used in chapter 5 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.rr)
summary(ss.data.rr)
#>    prototype  operator     run        time1           time2      
#>  prot #1:9   op #1:9   run #1:9   Min.   :0.900   Min.   :1.150  
#>  prot #2:9   op #2:9   run #2:9   1st Qu.:1.130   1st Qu.:1.275  
#>  prot #3:9   op #3:9   run #3:9   Median :1.270   Median :1.370  
#>                                   Mean   :1.324   Mean   :1.506  
#>                                   3rd Qu.:1.560   3rd Qu.:1.835  
#>                                   Max.   :1.770   Max.   :2.100