matlab rms

在Matlab中，rms函数用于计算输入数据的均方根值。如果输入数据是一个行向量或列向量，那么rms函数将返回一个实数值标量。如果输入数据是一个大小为N*M的矩阵，那么rms函数将返回一个大小为1*M的行向量，其中每个元素对应输入矩阵每列的均方根值。需要注意的是，计算均方根值时除以的是样本数量n，而不是n-1，这与计算标准差时除以的是n-1不同。\[1\]
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