範例：平滑時間序列

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範例：平滑時間序列

若時間序列數據除了數據點索引本身之外，並沒有特定的自變數，則可建構 x 軸向量，再使用平滑函數。

1. 定義向量，以描述熱流。

按一下以複製此運算式

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        <real>9.252</real>
        <real>9.281</real>
        <real>9.271</real>
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        <real>9.225</real>
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        <real>9.278</real>
        <real>9.311</real>
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        <real>9.275</real>
        <real>9.252</real>
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        <real>9.255</real>
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        <real>9.256</real>
        <real>9.262</real>
        <real>9.25</real>
        <real>9.262</real>
        <real>9.264</real>
        <real>9.265</real>
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        <real>9.222</real>
        <real>9.242</real>
        <real>9.215</real>
        <real>9.286</real>
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        <real>9.285</real>
        <real>9.269</real>
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        <real>9.274</real>
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        <real>9.271</real>
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        <real>9.264</real>
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        <real>9.253</real>
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        <real>9.258</real>
        <real>9.268</real>
        <real>9.268</real>
        <real>9.249</real>
        <real>9.235</real>
        <real>9.243</real>
        <real>9.253</real>
        <real>9.263</real>
        <real>9.243</real>
        <real>9.261</real>
        <real>9.26</real>
        <real>9.253</real>
        <real>9.241</real>
        <real>9.239</real>
        <real>9.264</real>
        <real>9.243</real>
        <real>9.247</real>
        <real>9.252</real>
        <real>9.262</real>
        <real>9.247</real>
        <real>9.306</real>
        <real>9.238</real>
        <real>9.249</real>
        <real>9.257</real>
        <real>9.266</real>
        <real>9.299</real>
        <real>9.245</real>
        <real>9.287</real>
        <real>9.301</real>
        <real>9.257</real>
        <real>9.271</real>
        <real>9.275</real>
        <real>9.282</real>
        <real>9.253</real>
        <real>9.269</real>
        <real>9.282</real>
        <real>9.278</real>
        <real>9.285</real>
        <real>9.24</real>
        <real>9.268</real>
        <real>9.248</real>
        <real>9.225</real>
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        <real>9.244</real>
        <real>9.283</real>
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2. 建立大小與矩陣 data 相同的整數向量。

3. 視需要呼叫平滑函數，使用向量 x 作為引數。

4. 繪製原始數據集與平滑數據集。

按一下以複製此運算式

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相關主題

自適應平滑法

高斯核平滑法

中值平滑法

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