v0.7.0

[v0.7.0] - 2021-04-05

Added

• Holt Winters values can now be fetched at runtime, rather than simply being hardcoded.

Fixed

• Fixed slow shutdown of PHPA due to ignoring SIGTERM from K8s.

Changed

• Switched from Golang to Python for calculating statistical predictions for Linear Regression and Holt-Winters.
• Holt-Winters now calculated using statsmodels, opening up statsmodels configuration options for tuning.
  • trend - Either add/additive or mul/multiplicative, defines the method for the trend element.
  • seasonal - Either add/additive or mul/multiplicative, defines the method for the seasonal element.
  • dampedTrend - Boolean value to determine if the trend should be damped.
  • initializationMethod - Which initialization method to use, see statsmodels for details, either estimated,
    heuristic, known, or legacy-heuristic
  • initialLevel - The initial level value, required if initializationMethod is known.
  • initialTrend - The initial trend value, required if initializationMethod is known.
  • initialSeasonal - The initial seasonal value, required if initializationMethod is known.
• Holt-Winters seasonLength variable renamed to seasonalPeriods.
• Holt-Winters method split into trend and seasonal variables.
• Switched docs theme to material theme.