isothermal_OED_limit: OED of isothermal microbial inactivation with detection limit

Description Usage Arguments Value Examples

View source: R/OED_isothermal_limit.R

Description

Calculates an Optimal Experiment for an isothermal microbial inactivation experiment considering the maximum duration of the experiment according to the detection limit.

Usage

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isothermal_OED_limit(model, pars, limit, n_points, min_time, max_time,
  min_temp, max_temp, criterion = "D", opts = NULL, x_0 = NULL)

Arguments

model

character string defining the inactivation model to use.

pars

list defining the nominal model parameters.

limit

numerical value describing the maximum number of log-reductions that can be identified in the experiment limit = logDL - logN0, where DL is the detection limit.

n_points

numerical stating the number of data points.

min_time

numerical stating the lower limit for the time points.

max_time

numerical stating the upper limit for the time points.

min_temp

numerical stating the lower limit for the temperature.

max_temp

numerical stating the upper limit for the temperature.

criterion

character string defining the criterion to use.

opts

options for the MEIGO algorithm. By default, a maximum of 2000 function evaluations with local finish with the DHC algorithm (see help from MEIGO).

x_0

initial point for the MEIGO algorithm. By default, it is NULL.

Value

A MEIGO object

Examples

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pars <- list(z = 4.2, D_R = 3.9, temp_ref = 55)
opts <- list(maxeval=2000,local_finish="DHC")
## Not run: 
OED <- isothermal_OED_limit("Bigelow", pars, n_points = 5, criterion = "E-mod", limit = 6,
                      min_time = 0, max_time = 100, min_temp = 52.5, max_temp = 60,
                      opts = opts)
plot(OED)

## End(Not run)

bioOED documentation built on Aug. 7, 2019, 5:03 p.m.