Boiler temperature data

Temperature readings from the eight configured burners on a boiler.

data(boiler)

Format

A data frame with 25 observations on the following 8 variables:

t1

temperature reading 1

t2

temperature reading 2

t3

temperature reading 3

t4

temperature reading 4

t5

temperature reading 5

t6

temperature reading 6

t7

temperature reading 7

t8

temperature reading 8

References

Mason, R.L. and Young, J.C. (2002) Multivariate Statistical Process Control with Industrial Applications, SIAM, p. 86.

Examples

data(boiler)
describe(boiler)
#>    Obs  Mean StdDev Min Median Max
#> t1  25 525.0  7.348 507    527 536
#> t2  25 513.6  2.200 509    514 518
#> t3  25 538.9  4.795 527    540 546
#> t4  25 521.7  4.723 512    523 530
#> t5  25 503.8  3.379 497    504 509
#> t6  25 512.4  2.123 508    512 517
#> t7  25 478.7  3.410 471    480 483
#> t8  25 477.2  1.964 472    477 481
boxplot(boiler)