3.6. Serial evaluations of an existing project¶
The necessity may arise to re-evaluate an existing project for the case of modified values/uncertainties of some of its input quantities. Modified values may result from further measurements; they may also occur, e.g., in an exercise of how the values of the decision threshold of the detection limit depend on some of the input values/uncertainties. Such a procedure is now supported by the menu item „Edit – Serial evaluation“.
Values/uncertainties of some of the input quantities to be modified can be transferred by the user into a CSV file, an example of which might be the following:
eps1 |
u(eps1) |
eps4 |
u(eps4) |
|---|---|---|---|
0.338 |
0.045 |
0.390 |
0.055 |
0.36 |
0.045 |
0.370 |
0.049 |
0.35 |
0.047 |
0.360 |
0.052 |
The first line contains the symbols of the input quantities the values/uncertainties of which are to be modified; it is followed by lines (=sets) of modified values. Up to 60 symbols/values can be used; the symbols must be ones being already defined in the project. The first line is to be interpreted as follows:
Symbol the modified value associated with Symbol
u(Symbol) the modified standard uncertainty associated with Symbol
hw(Symbol) the modified half-width value associated with the rectangularly distributed Symbol (from which the uncertainty is calculated internally)
Allowed symbols in this context are those being declared as “independent“ in the table “Values, Uncertainties“,
The example given above is now part of the UncertRadio installation as a
file called J_Aluft_serial_EN.csv. It is meant for using it with the
existing project J-ALUFT-Sr89-Sr-90_EN.txp.
With activating the menu item “Edit – Serial evaluation“, the following dialog is invoked by which the evaluation can be started after having defined the setup of this evaluation:
UncertRadio then produces one or two output files (csv type) for the results obtained – without and with MC simulation. Their names are derived from the name of the input csv file, as in the case of the above example:
J_Aluft_serial_EN_res.csv
J_Aluft_serial_EN_mc.csv
These files contain values for:
File; #EG; PE; uPE; BE; uBE; LQ; UQ; sLQ; sUQ; DT; DL;
(project filename, No. of the output quantity, primary value and uncertainty of the output quantity, best estimate and associated uncertainty, lower and upper quantile, decision threshold, detection limit)
