bel/ana-ledger
1
0
Fork 0
Code Actions Packages Projects Releases Activity

no predict contributions if less than 2 balances

Browse Source
This commit is contained in:
Bel LaPointe
2023-10-26 06:10:31 -06:00
parent eda1c564d4
commit 45beb54fbc
2 changed files with 49 additions and 27 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
ledger/predict.go
View File

@@ -55,6 +55,9 @@ func registerWithContributionPredictionForNameForCurrency(reg Register, window t
sort.Slice(contributions, func(i, j int) bool {
return contributions[i].t.Before(contributions[j].t)
})
if len(contributions) < 2 {
return nil
}
getMedianValueDelta := func(contributions []contribution) float64 {
values := make([]float64, len(contributions))
@@ -72,10 +75,17 @@ func registerWithContributionPredictionForNameForCurrency(reg Register, window t
slices.Sort(lapses)
return lapses[len(lapses)/2]
}
contributsSlice := func(percent float64) []contribution {
wouldBe := int(percent * float64(len(contributions)))
if wouldBe == 0 {
wouldBe = 2
}
return contributions[len(contributions)-wouldBe:]
}
eighth := contributions[int(7.0*len(contributions)/8.0):]
quarter := contributions[int(3.0*len(contributions)/4.0):]
half := contributions[int(1.0*len(contributions)/2.0):]
eighth := contributsSlice(7.0 / 8.0)
quarter := contributsSlice(3.0 / 4.0)
half := contributsSlice(1.0 / 2.0)
medianValueDelta := func() float64 {
return (4.0*getMedianValueDelta(eighth) + 2.0*getMedianValueDelta(quarter) + 1.0*getMedianValueDelta(half)) / (4.0 + 2.0 + 1.0)
}()