c chart: counts of nonconformities per unit — edetect_c • edetect

c chart: counts of nonconformities per unit

Usage

edetect_c(x, center = NULL, phase1 = NULL, ...)

Arguments

x: Counts per inspection unit.
center: Pre-change mean count; omit to estimate it from phase1.
phase1: Optional Phase I counts (a numeric vector, unit exposure).
...: Passed to edetect_design() (arl, direction, type, evalue, delta, weights).

Value

An edetect_chart.

Examples

chart <- edetect_c(x = c(3, 2, 4, 3, 8, 9, 11), center = 3, arl = 100)
#> Warning: Alarm at t = 6; 1 later observation was not consumed.
edetect_alarm(chart)
#> # A tibble: 1 × 6
#>   alarm alarm_time evidence threshold change_estimate n_observed
#>   <lgl>      <int>    <dbl>     <dbl>           <int>      <int>
#> 1 TRUE           6     420.       100               5          6