UstdI {IQCC} | R Documentation |
This function builds a standardized version of the u control chart for phase I.
UstdI(par, sizes, length)
par |
The sample ratios used to estimate the Poisson parameter(lambda). |
sizes |
A value or a vector of values specifying the sample sizes associated with each group. |
length |
The length of the data. |
The standardized version of the u statistic has zero mean and unitary standard deviation, so that the center line is zero and the 3-sigma control limits are -3 and +3.
Return a standardized u chart.
Daniela R. Recchia, Emanuel P. Barbosa
data(moonroof) attach(moonroof) UstdI(par=ui[1:17],sizes=ni[1:17],length=17)