MT4-AIS Ind Basic Window Functions

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可以使用各种窗口函数来平滑时间序列。窗函数的特性可能彼此完全不同——平滑程度、噪声抑制等。该指标允许您实现主窗口函数并评估它们在金融时间序列上的表现。
指标参数:
  • iPeriod – 指标周期。 iPeriod >= 2
  • iCenter 是窗口函数中心所在的参考索引。默认情况下,此参数为 0 - 窗口中心与指标中心重合。当 1 <= iCenter <= iPeriod 时,窗口函数的中心将移动,因此指标的某些特征将发生变化。在图 1 中,您可以看到中心的选择如何影响窗口功能和指标的显示。此参数可以以 0.5 为增量进行更改。

一些窗口函数使用附加参数 - ParameterA 和 ParameterB。它们会影响窗口权重。正因为如此,指标的特性发生了变化。该表显示了窗口函数和更改参数的限制(如果使用它们)。可以使用脚本 https://www.mql5.com/ru/market/product/72156 估计给定参数的窗口函数权重分布

Window
Parameter A
Parameter B
Bartlett - Hann window


Blackman window


Blackman window exact


Blackman – Harris window


Blackman – Harris window approx.


Blackman – Harris window corr.


Blackman - Harris window opt.


Blackman – Harris window ref.


Blackman - Nuttall window


Bohman window


Cauchy window
0 <= ParameterA

Connes window
1 < = ParameterA

Cosine gen. window 1st
0 <= ParameterA <= 100

Cosine gen. window 2nd
0 <= ParameterA <= 100

Dolph - Chebyshev window
0 <= ParameterA

Flat Top window


Flat Top window approx.


Gauss window
1 < = ParameterA <= 2*iPeriod

Gauss window approx.
1 < = ParameterA <= 2*(iPeriod+1)

Gauss window conf.
1 < = ParameterA <= 2*(iPeriod+1)

Gauss window gen.
1 < = ParameterA <= 2*iPeriod
0 <= ParameterB
Hamming window


Hamming window opt.


Hann window


Hann double window


Hann - Poisson window
0 <= ParameterA

Hyperbolic tangent window
0 <= ParameterA
0 <= ParameterB
Kaiser window
0 <= ParameterA

Kaiser - Bessel window
0 <= ParameterA

Kaiser – Bessel window approx.


Karre window


Lanczos window


Lanczos kernel window
1 <= ParameterA

Log window
1 <= ParameterA

Logistic window


Modified cosine window


Nuttall's window


Parzen window


Planck - Bessel window
0 < = ParameterA <= iPeriod/2
0 <= ParameterB
Plank-taper window
0 < = ParameterA <= iPeriod/2

Poisson window
0 <= ParameterA

Rectangular window


Rife – Vincent 3rd window


Rife – Vincent 4th window


Silverman window
1 <= ParameterA

Sinusoidal windows
0 <= ParameterA

Smoothed rectangular window
0 < = ParameterA <= iPeriod/2

Stepped window
0 <= ParameterA

Triangular window
0 < = ParameterA

Tukey window
0 < = ParameterA <= iPeriod/2

Welch window
1 <= ParameterA



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