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Re: How does AF calculate (predict) future?
Gerhard PolenzJan 19, 2018 2:32 PM (in response to igreguri)
2 of 2 people found this helpfulBasically the PI system does not predict or forecast data. However, you can use PI Analytics to calculate forecast data and save it with a timestamp in future. For example, you could calculate the average daily production number from data of the past 7 days and set this is to be the forecast for tomorrow. To store a value with a timestamp in the future, apply the "Relative to Trigger Time" option with a value of e.g. "*+24h" from the Analysis Advanced Options.
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Re: How does AF calculate (predict) future?
igreguri Jan 19, 2018 2:59 PM (in response to Gerhard Polenz)-
Re: How does AF calculate (predict) future?
Roger Palmen Jan 22, 2018 9:21 AM (in response to igreguri)Where did you get the screenshot from? That system will be able to disclose how the value of "Future" is calculated.
Basically Gerhard is right, analytics can do some forecasting, but there are other ways.
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Re: How does AF calculate (predict) future?
igreguri Jan 22, 2018 1:57 PM (in response to Roger Palmen)Hi Roger,
this screenshot is from PI Vision.
Blue is realtime data, and orange data *+2h calculated in analysis.
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