Hello all,
We are currently trending on a string type parameter where the values are not discreet. The trend charts appear to work sometimes but do occasionally behave oddly where data is displayed in strange ways. I attempted to see how the data would be displayed in dashboards as a comparison but found out that trend charts for string parameters are not possible in dashboards.
It is understood that it is not advised to trend on strings, but it is important for to be able to track changes to this parameter as it details when a particular entity in utilizing a satellite path and switches to another. The value of the parameter is dependent on many things and cannot be easily made into a discreet numeric value.
Do we have any other options for tracking changes to parameters like this?
Thanks in advance!
Brecht, This is a great callout. thank you very much for sharing.
Hi Thomas,
Maybe an option for your use case could be using a GQI query. You can use the data source ‘Get Trend Data’ to get the trend records available for that string parameter. You could use this GQI query as data feed for a trend chart component (see Configuration with query data feed).
Hope it helps.
Thank you Miguel, I have been able to create a GQI query that gets trend data for that parameter but haven’t been successful in piping that data into a trend chart component. The trend component appears to be limited to setting both the x and y axis to only start and end time (after selecting the query filter to use on the chart). I haven’t found a way to set the x axis as time and y axis as parameter value.
Thomas, The line chart in dashboards should be able to deal with your query, also with a query filter in between. You can contact me directly to dive into your case.
Hi Thomas,
Regarding trending on string parameters, please refer to the following documentation as well:
https://docs.dataminer.services/develop/codingguidelines/Monitoring/Trending1.html
Best regards,
Brecht