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49 lines
1.3 KiB
49 lines
1.3 KiB
package sig |
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import ( |
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"sig-pub/pkg/indicator" |
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"sig-pub/pkg/types/series" |
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) |
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// WindowIndicatorSeries 封装 |
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type WindowIndicatorSeries struct { |
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indicator.IIndicatorSeries |
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indicator indicator.IIndicator |
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indicatorContext IOffsetIndicatorContext |
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} |
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func NewWindowIndicatorSeries(indicator indicator.IIndicator, indicatorContext IOffsetIndicatorContext) *WindowIndicatorSeries { |
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return &WindowIndicatorSeries{ |
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indicator: indicator, |
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indicatorContext: indicatorContext, |
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} |
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} |
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func (s *WindowIndicatorSeries) CandlePeriods() int16 { |
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return s.indicator.CandlePeriods(s.indicatorContext) |
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} |
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func (s *WindowIndicatorSeries) Get(offset int16) (vector float64) { |
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// 根据当前相对offset |
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s.indicatorContext.AddOffset(offset) |
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vector = s.indicator.Calculate(s.indicatorContext) |
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// 计算结束后还原 |
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s.indicatorContext.AddOffset(-offset) |
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return |
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} |
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// Series 返回指标值序列降序 |
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func (s *WindowIndicatorSeries) Series(offset, count int16) (matrix series.Floats) { |
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// 设置当前相对offset |
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s.indicatorContext.AddOffset(offset) |
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for range count { |
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vector := s.indicator.Calculate(s.indicatorContext) |
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matrix.Push(vector) |
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offset++ |
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s.indicatorContext.AddOffset(1) |
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} |
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// 计算结束后还原 |
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s.indicatorContext.AddOffset(-offset) |
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return |
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}
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