Uncertainties
An intercept table of Uncertainties is used to determine the measure of uncertainty for the analysis result. The values are shown throughout the system as +/ value after a result
Using the coarse example above, a pH result of 6.3 is reported as 6.3 +/ 0.25
Calculate Precision from Uncertainties
If enabled, Bika calculates the precision required and round the results according to the uncertainties.
The rounding applies both for decimal results and results with scientific notation
The decimal position is given by the first number different from zero in the uncertainty, at that position the system will round up the uncertainty and results

For example
 a result of 5.243 and uncertainty of 0.22, the system displays as 5.2 + 0.2
 13.5 and uncertainty 1.34, the system displays 13 + 1
 0.0077. uncertainty 0.0021, displays 0.008 + 0.002
Enabled
Exponential Format Precision value 4
 If the Integer digits in the result > 4, the number is formatted in scientific notation
 If it is < 4, it is formatted as decimal notation, rounded in accordance to the precision calculated from the uncertainty
Disabled
If the Calculate precision from Uncertainties is disabled for the Analysis Service, the same rules described above applies, but the precision used for rounding the result is not calculated from the uncertainty
The fixed length precision is used instead
Manual Uncertainty input
Enabling this option, will allow Analysts to manually override system calculated defaults manually, often the case in more complex Analyses

Results Options
Some Analysis Services requiring text input as results, are best limited to a number of known possible outcomes to prevent typos and irrelevant input skewing reporting
To configure it, navigate to the Analysis Service's configuration, its Results Options tab
Add and remove the relevant options here. The numeric you assign is not shown in the UI, but sometimes used in results calculations
