Very often, analytical data must be transformed, units must be converted
or data must be scaled to meet the user requirements or for comparison
with other data. All these required manipulation operations will be provided
by the mathematics module of the software. Mathematical methods can be
applied to analytical data subsequently to yield the results, the user
likes to see.
Thus basic mathematical methods of the software are used to manipulate
spectral data either temporarily or permanently. All manipulations will
be logged in the audit trail
of the manipulated object for CFR 21 part 11 compliance. This way, changes
can be tracked easily. Some of the mathematical methods are data type
dependent and others are available with all data
In case the selected operation is not valid for the current data type,
the user will be prompted.
In general, equidistant
and discrete data objects
will be distinguished. This is necessary since not all operations can
be carried out with discrete objects. A typical example for a discrete
object is a mass spectrum, which contains a lot of non-equidistant data
points. For example the Adjust x-Axis method will not work with such data.
Applicable mathematical functions.
Some of the mathematical functions can only be applied to a particular
data type. In this case, the mathematical function is missing or disabled.