Multivariate Shewhart-type control charts

`phase1Plot`

and `mphase1Plot`

plot univariate or multivariate Phase 1 observations,
organized as required by the `dfphase1`

package.

1 2 3 | ```
phase1Plot(x)
mphase1Plot(x, layout = c(1, p))
``` |

`x` |
Here, p denotes the number of variables, n the size of each subgroup and m the number of subgroups. |

`layout` |
an integer vector describing the multi-panel (and possible multi-page) layout. See the third example below. |

Giovanna Capizzi and Guido Masarotto.

1 2 3 4 5 6 7 8 9 10 | ```
x <- matrix(rt(5*20,5),5)
x[,10] <- x[,10]+3
phase1Plot(x)
# a data set with many variables
x <- array(rnorm(20*5*50),c(20,5,50))+10*(1:20)
mphase1Plot(x)
# it is better to organize the plot on two pages
if (interactive()) old <- grDevices::devAskNewPage(TRUE)
mphase1Plot(x,c(2,5,2))
if (interactive()) grDevices::devAskNewPage(old)
``` |

Questions? Problems? Suggestions? Tweet to @rdrrHQ or email at ian@mutexlabs.com.

Please suggest features or report bugs with the GitHub issue tracker.

All documentation is copyright its authors; we didn't write any of that.