smokedfish | R Documentation |

Contamination data of *Listeria monocytogenes* in smoked fish on the Belgian market in the period 2005 to 2007.

`data(smokedfish)`

`smokedfish`

is a data frame with 2 columns named left and right, describing
each observed value of *Listeria monocytogenes* concentration (in CFU/g) as an interval.
The left column contains either NA for
left censored observations, the left bound of the interval for interval censored
observations, or the observed value for non-censored observations. The right
column contains either NA for right censored observations, the right bound of
the interval for interval censored observations, or the observed value for non-censored
observations.

Busschaert, P., Geereard, A.H., Uyttendaele, M., Van Impe, J.F., 2010.
Estimating distributions out of qualitative and (semi) quantitative microbiological
contamination data for use in risk assessment. *International Journal of Food Microbiology*.
**138**, 260-269.

```
# (1) load of data
#
data(smokedfish)
# (2) plot of data in CFU/g
#
plotdistcens(smokedfish)
# (3) plot of transformed data in log10[CFU/g]
#
Clog10 <- log10(smokedfish)
plotdistcens(Clog10)
# (4) Fit of a normal distribution to data in log10[CFU/g]
#
fitlog10 <- fitdistcens(Clog10, "norm")
summary(fitlog10)
plot(fitlog10)
```

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