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fixedpoint: add counter func
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parent
e28921879d
commit
c62330b2c1
13
pkg/fixedpoint/count.go
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13
pkg/fixedpoint/count.go
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@ -0,0 +1,13 @@
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package fixedpoint
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type Counter func(a Value) bool
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func Count(values []Value, counter Counter) int {
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var c = 0
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for _, value := range values {
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if counter(value) {
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c++
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}
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}
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return c
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}
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@ -291,6 +291,12 @@ func (s *TradeStats) update() {
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netProfitsByOrder = append(netProfitsByOrder, sumNetProfit)
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}
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s.NumOfProfitTrade = fixedpoint.Count(profitsByOrder, func(a fixedpoint.Value) bool {
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return a.Sign() > 0
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})
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s.NumOfLossTrade = fixedpoint.Count(profitsByOrder, func(a fixedpoint.Value) bool {
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return a.Sign() < 0
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})
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s.TotalNetProfit = fixedpoint.Reduce(profitsByOrder, fixedpoint.SumReducer)
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s.GrossProfit = fixedpoint.Reduce(profitsByOrder, grossProfitReducer)
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s.GrossLoss = fixedpoint.Reduce(profitsByOrder, grossLossReducer)
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