Class DMA

双重移动平均线（DMA）类型：趋势指标

DMA 由两条移动平均线组成：短期与长期。

双重移动平均线交叉：短期均线上穿长期均线表示看涨买入机会。短期均线下穿长期均线表示看跌卖出机会。

See

https://faculty.fuqua.duke.edu/~charvey/Teaching/BA453_2002/CCAM/CCAM.htm#_Toc2634228

Hierarchy (View Summary)

TechnicalIndicator<DMAResult, number>
- DMA

Index

Constructors

Properties

Accessors

Methods

add getRequiredInputs getResult getResultOrThrow replace update updates

Constructors

constructor

new DMA(
    short: number,
    long: number,
    SmoothingIndicator?: MovingAverageTypes,
): DMA
Parameters
- short: number
- long: number
- SmoothingIndicator: MovingAverageTypes = SMA
Returns DMA
Overrides TechnicalIndicator.constructor
- Defined in trend/DMA/DMA.ts:27

Properties

`Readonly`long

long: MovingAverage

`Readonly`short

short: MovingAverage

Accessors

isStable

get isStable(): boolean
Returns boolean
Overrides TechnicalIndicator.isStable
- Defined in trend/DMA/DMA.ts:33

Methods

add

add(input: number): null | DMAResult
Parameters
- input: number
Returns null | DMAResult
Inherited from TechnicalIndicator.add
- Defined in types/Indicator.ts:41

getRequiredInputs

getRequiredInputs(): number
Returns number
Overrides TechnicalIndicator.getRequiredInputs
- Defined in trend/DMA/DMA.ts:37

getResult

getResult(): null | DMAResult
Returns null | DMAResult
Inherited from TechnicalIndicator.getResult
- Defined in types/Indicator.ts:21

getResultOrThrow

getResultOrThrow(): DMAResult
Returns DMAResult
Inherited from TechnicalIndicator.getResultOrThrow
- Defined in types/Indicator.ts:29

replace

replace(input: number): null | DMAResult
Parameters
- input: number
Returns null | DMAResult
Inherited from TechnicalIndicator.replace
- Defined in types/Indicator.ts:45

update

update(price: number, replace: boolean): null | { long: number; short: number }
Parameters
- price: number
- replace: boolean
Returns null | { long: number; short: number }
Overrides TechnicalIndicator.update
- Defined in trend/DMA/DMA.ts:41

updates

updates(inputs: readonly number[], replace?: boolean): (null | DMAResult)[]
Parameters
- inputs: readonly number[]
- replace: boolean = false
Returns (null | DMAResult)[]
Inherited from TechnicalIndicator.updates
- Defined in types/Indicator.ts:51