我想通过matlab对数据进行平均

时间:2012-02-06 02:52:43

标签: matlab average

我想平均数据 但是,数据的长度彼此不同 数据的数量是七 我如何通过matlab解决这个问题?

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数据阵列的长度不同。 我想平均这7个数据。

2 个答案:

答案 0 :(得分:2)

如果需要找到存储在多个向量中的值的平均值,首先将两个向量的所有值相加。然后使用length()来查找每个向量中有多少条目。添加长度,您将拥有总条目数。然后,您可以将总和除以条目数以得到平均值。 具体如何做到这一点取决于你的数据(你有多少向量,你是否总是有相同的数字)。

因此,如果您的变量是a,b,c,d,e,f,g:

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

您还可以通过循环使用任意数量的项目。

答案 1 :(得分:1)

使用mean并连接所有向量:

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

如果它们是列向量垂直连接:

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