Description Usage Arguments Value Methods (by class)
Returns functions to compute desired properties of a given control chart.
1 2 3 4 5 6 7 8 9 10 |
chart |
the chart to be used. |
property |
the name of the property. |
params |
additional parameters needed for the computations. |
A list with the elements q
, trafo
, lowerconf
, format
.
q(P,xi)
: The transformed property of interest. To improve the bootstrap a log transform is used for calARL
,calhitprob
and ARL
, and a logit transform for hitprob
. This function depends on the distribution of updates P
and the chart parameters xi
.
trafo(x)
: The inverse of the transformation of the property used in the bootstrap. Needed to back-transform the result to the correct scale.
lowerconf
: Logical value. TRUE if a lower confidence interval should be reported, FALSE otherwise. Default is TRUE for properties calARL
, calhitprob
and hitprob
and FALSE for ARL
.
format(res)
: Output summary given as a text string.
SPCCUSUM
: Implements the properties ARL
,
calARL
, hitprob
and calhitprob
.
SPCEWMA
: Implements the properties ARL
,
calARL
, hitprob
and calhitprob
.
SPCShew
: Implements the properties ARL
,
calARL
, hitprob
and calhitprob
.
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