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Status Evaluating
Categories Symbols
Created by Ryan McErlean
Created on Aug 18, 2022

Trend: Regression line

Support for a linear regression lines on trends, similar to what was available in PI ProcessBook.
  • ADMIN RESPONSE
    Feb 3, 2025

    We are evaluating this feature request towards a future PI Vision release. Continue to share more details about the functionality you're requesting. Please take a moment to answer the following questions:

    1. What specific problem are you trying to solve with this enhancement?

    2. How would you like this feature to work?

    3. Who will benefit the most from this enhancement?

  • Attach files
  • Athanasios Kitsios
    Reply
    |
    Feb 4, 2025

    You could consider the following options when user adds a trendlines based on five models:

    • Linear

    • Logarithmic

    • Exponential

    • Polynomial (with user-defined Degrees)

    • Power

    Also consider:

    • Allow a trend line per colour (attribute)

    • Show/hide confidence bands (90%, 95% 99% confidence intervals for each model)

    • Force y intercept through zero

    • Option to include other attributes as factors within the model

    • Show a recalculated line for highlighted/selected data points

    • Show tool tip with the Exact Formula with parameters used, the ‘R-squared’, the ‘P-value’, and options for Edit, Format and Remove.

  • Ku Muhamad Ashman Ku Aziz
    Reply
    |
    Feb 4, 2025

    Sharing my experience as PI Engineer, our users from engineering team used the regression line to do forecast based on the regression line and when the parameter/attributes will reach certain limit. So, it will be useful if there is also a feature that can include limit and determine the time to reach the limit. For example, determine the lube oil level and when to top-up.

  • Semavi Terzi
    Reply
    |
    May 27, 2024

    gonna suggest this suggestion for also AF analytics

  • Guest
    Reply
    |
    Aug 18, 2022
    ProcessBook's linear regression able to change based on the time-range selected (on-the-fly) and can also predict for future (which is useful for us to predict fouling), this is not achievable through PI Vision.
  • Victor Cunha
    Reply
    |
    Aug 18, 2022
    Any updates on this? Shouldnt be really complex change as it is already available for xy trend