IsData
IsData('Expression','End')
Arguments
|
'Expression' |
Input signal or expression |
|
'End' |
Length of the resulting signal |
Description
The result of this operation is TRUE if measured values are available for 'Expression'. The result is FALSE if measured values are missing or signals are empty. You can use this function, for example, as condition for other calculations.
Optionally, you can enter the 'End' parameter. This parameter can reduce or extent the resulting signal of the function so that the resulting signal complies with other signals and can be used for further links. If you do not specify the 'End' parameter, the length of the result signal complies with that of the input signal (incl. invalid samples).
Coalesce
Coalesce ('Candidate1','Candidate2',…)
Description
Inspired by the corresponding SQL query, the function Coalesce returns the first of its arguments that contains data. As of ibaAnalyzer v8.3.0 or later, this function processes data sample by sample.
You can use this function, for example, to create a safeguard against missing signals in a data file.