In dan2cil/tecTools: A collection of small function for Food Technologists

With simulatePack() is possible to:

simulate the weight distribution of a mixed box of product
check the declared weight of the box
check if it possible to change the declared weight of the box

Function

Below the sintax of the function simulatePack():

simulatePack(source, composition, declared, plotce = F, main = "Pesi medi", step = 1e+05)

where:

source      :   a data frame with the weight of the single praline
composition :   a data frame with the composition of the pack
declared    :   declared weight
plotce      :   boolean, T if you want to plot T1 and T2, otherwise F
main        :   optional main title
step        :   simulation steps, number of pack to be simulated

Data Frame structure

library(ggplot2)
library(tecTools)

In the source data frame we save the weight of a sample af all the product we want to use in a mixed box:

data(source)                     # load Thorntons Continental Praline weight
knitr::kable(head(source, 5))

In the composition data frame we save the composition of the mixed box:

data(composition)                # composition of Thorntons Continental box
knitr::kable(composition)

Examples

In the following example we could see the frequency distribution of the weight of a box containing 16 Ferrero Rocher using the weight of the single praline products on line 1 of Alba

library(ggplot2)
library(tecTools)
data(L1_max)                   # load Rocher weight
a <- data.frame(RO=c(16))      # composition of box of T.16 Rocher
simulatePack(L1_max, a, 200.5)

the same plotting the T1 and T2 according to Dir. n. 76/211/CEE

library(ggplot2)
library(tecTools)
data(L1_max)                   # load Rocher weight
a <- data.frame(RO=c(16))      # composition of box of T.16 Rocher
simulatePack(L1_max, a, 200.5, plotce=T)

Reference

The calculation of T1 and T2 are based on Dir. n. 76/211/CEE (Legge 25.10.78 n.690 in Italy) "approximation of the laws of the Member States relating to the making-up by weight or by volume of certain prepackaged products " ^[available in internet]: