auto contributions only if at least 4 (3 deltas) in 6 months

ana/predictor.go

@@ -99,6 +99,9 @@ func getMonthlyAutoContributionRateForCurrency(contributions []ledger.Balance, w
 		}
 	}
 	slices.Sort(values)
+	if len(values) < 3 {
+		return 0
+	}
 
 	start := int(len(values) / 4)
 	end := min(1+max(0, len(values)-len(values)/4), len(values))

todo.yaml

@@ -1,5 +1,4 @@
 todo:
-- require at least N contributions in N months before autoContributions!=0
 - ?prediction=contributions=x y z&prediction=contribution=x y z
 - ana/predictor for bpi or de-legacy
 - predictWhatIf=2023-10=AssetAccount:Cash=$=-7000 changes too much when removing 7k
@@ -61,3 +60,5 @@ done:
   ts: Fri Oct 27 18:49:37 MDT 2023
 - todo: ana/legacy_* drop
   ts: Fri Oct 27 18:50:08 MDT 2023
+- todo: require at least N contributions in N months before autoContributions!=0
+  ts: Fri Oct 27 19:05:40 MDT 2023