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fix duplicate rma value
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parent
4c1654652e
commit
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@ -34,23 +34,20 @@ func RMA2(source types.Float64Source, window int, adjust bool) *RMAStream {
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func (s *RMAStream) Calculate(x float64) float64 {
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func (s *RMAStream) Calculate(x float64) float64 {
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lambda := 1 / float64(s.window)
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lambda := 1 / float64(s.window)
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tmp := 0.0
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if s.counter == 0 {
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if s.counter == 0 {
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s.sum = 1
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s.sum = 1
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tmp = x
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s.previous = x
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} else {
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} else {
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if s.Adjust {
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if s.Adjust {
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s.sum = s.sum*(1-lambda) + 1
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s.sum = s.sum*(1-lambda) + 1
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tmp = s.previous + (x-s.previous)/s.sum
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s.previous = s.previous + (x-s.previous)/s.sum
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} else {
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} else {
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tmp = s.previous*(1-lambda) + x*lambda
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s.previous = s.previous*(1-lambda) + x*lambda
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}
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}
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}
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}
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s.counter++
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s.counter++
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s.Slice.Push(tmp)
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return s.previous
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s.previous = tmp
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return tmp
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}
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}
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func (s *RMAStream) Truncate() {
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func (s *RMAStream) Truncate() {
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