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範例:自適應平滑法
範例:自適應平滑法
使用
supsmooth
函數平滑處理數據集。
1.
透過損毀餘弦曲線,建立雲狀數據集。
M
0.0153449
0.0159473
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0.0615252
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0.0880314
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0.114755
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0.13098
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0.140181
0.148275
0.149904
0.159996
0.160516
0.167491
0.16885
0.17534
0.176078
0.18147
0.183209
0.184511
0.184658
0.193931
0.194955
0.196857
0.202522
0.202817
0.202906
0.206095
0.20889
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0.25575
0.255797
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0.270734
0.272782
0.273339
0.282613
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0.298869
0.306302
0.312885
0.317558
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0.353001
0.36245
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0.407062
0.410934
0.411243
0.419991
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0.421682
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0.544422
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0.57018
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0.58187
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0.58521
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0.588322
0.595793
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1.73324
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-1.23622
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1.9078
1.37731
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0.227838
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2.5743
-1.16072
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1.94684
1.65556
-0.831856
0.401844
0.793753
0.647058
1.26345
-0.261144
1.42894
0.649288
-0.132032
-0.663229
2.04889
0.860219
1.29241
0.475458
-0.430081
1.26762
3.51077
X
M
0
Y
M
1
2.
使用
supsmooth
函數對數據集執行自適應平滑處理。
Yss
supsmooth
X
Y
3.
使用
ksmooth
函數對數據集執行中值平滑法。
i
0
last
X
Yks
ksmooth
X
Y
0.1
4.
在平滑處理前後繪製數據集。比較超級平滑處理的數據集與平滑處理核的數據集。
線條
線條
線條
11
X
11
Y
Yss
Yks
複製運算式