3.2.5. Preferences

Various parameters can be set in the worksheet

Max deviation for bad average

A percentage is entered in this field. After pressing the "Calc average" button, an average is calculated from all calculated results. If the standard deviation of these measurement points divided by the average is >15%, the result will be coloured red. All averages with a CV% ≤15% turn green.

Extrapolate (0=no, 1=yes, 2=between blank and highest dose)

The calculation range of a calibration line is between the lowest and highest dose / concentration. The calibration line can be extrapolated above the highest dose and below the lowest dose but often results obtained from these extrapolated responses are not validated. In special cases option 1 can be chosen to use results from extrapolation. The area between the blank and the lowest dose / concentration is below the determination limit (Lower Limit of Detection (LLOD)) of the test. In cases when results below the LLOD must be calculated option 2 can be chosen.