This function produces overlaid Operating Characteristic (OC) curves for any three systematic/random sampling schemes for specified parameters.
compare_plans_oc(c1, c2, c3, r1, t1, r2, t2, r3, t3, distribution, K, m, sd)Arguments
- c1, c2, c3
acceptance numbers
- r1, r2, r3
number of primary increments in a grab sample or grab sample size
- t1, t2, t3
number of grab samples
- distribution
what distribution we have used such as
'Poisson gamma'or'Lognormal'or'Poisson lognormal'- K
dispersion parameter of the Poisson gamma distribution (default value 0.25)
- m
microbiological limit with default value zero, generally expressed as number of microorganisms in specific sample weight
- sd
standard deviation of the lognormal and Poisson-lognormal distributions on the log10 scale (default value 0.8)
Value
overlaid OC curves
See also
Examples
c1 <- 0
c2 <- 0
c3 <- 0
r1 <- 25
r2 <- 50
r3 <- 75
t1 <- 10
t2 <- 10
t3 <- 10
distribution <- 'Poisson lognormal'
compare_plans_oc(c1, c2, c3, r1, t1, r2, t2, r3, t3, distribution)
