Fixed issue with yearly seasonality being enabled without enough data -

fixes #20
ankane · May 6, 2024 · 6f613f0 · 6f613f0
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,6 +1,7 @@
 ## 0.5.1 (unreleased)
 
 - Added `scaling` option
+- Fixed issue with yearly seasonality
 
 ## 0.5.0 (2023-09-05)
 

diff --git a/lib/prophet/forecaster.rb b/lib/prophet/forecaster.rb
@@ -567,7 +567,7 @@ def set_auto_seasonalities
       days = 86400
 
       # Yearly seasonality
-      yearly_disable = last - first < 370 * days
+      yearly_disable = last - first < 730 * days
       fourier_order = parse_seasonality_args("yearly", @yearly_seasonality, yearly_disable, 10)
       if fourier_order > 0
         @seasonalities["yearly"] = {