59 lines
1.2 KiB
Go
59 lines
1.2 KiB
Go
package timeseries
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import "time"
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func TransformScale(factor float64) TransformFunc {
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return func(point TimePoint) TimePoint {
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if point.Value != nil {
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newValue := *point.Value * factor
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point.Value = &newValue
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}
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return point
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}
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}
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func TransformOffset(offset float64) TransformFunc {
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return func(point TimePoint) TimePoint {
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if point.Value != nil {
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newValue := *point.Value + offset
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point.Value = &newValue
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}
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return point
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}
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}
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func TransformNull(nullValue float64) TransformFunc {
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return func(point TimePoint) TimePoint {
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if point.Value == nil {
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point.Value = &nullValue
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}
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return point
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}
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}
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func TransformRemoveAboveValue(threshold float64) TransformFunc {
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return func(point TimePoint) TimePoint {
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if *point.Value > threshold {
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point.Value = nil
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}
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return point
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}
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}
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func TransformRemoveBelowValue(threshold float64) TransformFunc {
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return func(point TimePoint) TimePoint {
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if *point.Value < threshold {
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point.Value = nil
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}
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return point
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}
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}
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func TransformShiftTime(interval time.Duration) TransformFunc {
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return func(point TimePoint) TimePoint {
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shiftedTime := point.Time.Add(interval)
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point.Time = shiftedTime
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return point
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}
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}
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