Analytics & Calculations

During bulk recalculation or backfill, enhance the PI Asset Analytics engine to prioritize the calculation of analyses that act as inputs into higher level "daisy" chain analyses. This would address performance issues at large scale, as described ...

Our process is writing an array of strings into an AF attribute of the same type. This AF attribute may receive information of different size (index) in time. We need to extract all the information contained in the string array (all the items) an...

I find myself making analytics on child elements which by themselves have limited value, but are needed to get rollup analyses to work. This adds complexity to the design of AF. Two ideas would improve this: 1) Count # of attributes that meet a c...

Some Analytics fail due to a tag not existing. It is possible to test for a Bad value via the BadVal() function, however, this does not work if the tag does not exist. Consequently the equation will not run. This caused me many hours of debugging ...

I would like to create a custom AFAnalysisRule that allows us to leverage the resources on the PI Analysis Service to perform calculations that the Analysis Service currently cannot perform. These calculations include matrix operations, array oper...

We have many calculations following this basic pattern - take recorded values of one attribute, apply a filter (using FilterData), then retrieve values of a second attribute at the filtered timestamps of the first attribute. Currently, we cannot r...

For unitless values you can assign a unit of measure by using the Convert() function. To further convert this to another UoM in the same class you need to nest another Convert() function. For example, Convert(Convert(3600, "s"), "h")) It would sim...

Hello, We have a use case that would benefit from being able to insert into an AFTable from an analysis. This would work in the same way that event frames do, where a trigger condition is meet that causes the row to be inserted. The variables from...

Consider implementation performance analysis service statistics in AF Explorer which is now performed in a complicated way by exporting data to Excel, rearranging and viewing in a pivot table. It would also be useful to be able to retrieve that da...

I want to be able to link an EventFrame to the Primary Parent of the Element the EF analysis is defined on. E.g. i use a child element to a Unit to contain the logic to detect and generate downtime events. However, i want the downtime event to li...