The output of the PRSD aggregator is the relative standard deviation expressed as percent. However, the % sign is not shown per default and the output is formatted as a string, but not a number.
There are 2 solutions:
- add a +“ %“ expression to the string expression
- Change the expression =Prsd(Area(Sample_Name)) to =0.01*val(Prsd(Area(Sample_Name)))
- Format the field as %
- The val() command converts the string to a number and so you can apply a %age format to this number.
- When formatting a number a %age, it gets automatically multiplied by 100. Hence, a number that is already expressed as % needs to be multiplied by 0,01 to avoid a duplicated conversion
The second approach also allows you to store the result as a variable for further calculation usage.
(originally posted in OpenLAB Forum: https://zohodiscussions.com/openlabcdsforum#Topic/68030000000062031
2015 January 16 by Bernhard Etrich)