我想通過matlab來平均數據

Question

我想要平均數據 但是，數據的長度是不同的 數據的數量是七 我怎樣才能解決這個問題的matlab？數據陣列的

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長度是不同的。 我想平均這7個數據。

Answer 1

使用mean，只是串聯所有的載體：

mean([x1 x2 x3 x4 x5 x6 x7]); 

如果他們列向量垂直串聯：

mean([x1; x2; x3; x4; x5; x6; x7]); 

Answer 2

如果您需要查找存儲在多個向量中的值的均值，請首先對兩個向量的所有值進行求和。然後使用length（）來找出每個向量中有多少條目。添加長度，您將擁有條目總數。然後你可以將你的總和除以輸入的數量來得到平均值。 你究竟如何做到這一點將取決於你的數據（你有多少矢量，是否你總是有相同的數字）。

所以，如果你的變量是A，B，C，d，E，F，G：

sumOfVectors = sum(a) + sum(b) + ... etc 
numberOfItems = length(a) + length(b) + ... etc 
averageAllData = sumOfVectors/numberOfItems 

你也可能通過使用一個循環，使這項工作的項目任意數量。