matlab求有效值函数

在Matlab中，可以使用RMS函数来计算有效值（即均方根值）。RMS是均方根（Root Mean Square）的简称，表示真有效值。计算方法是将信号的平方值求平均后再开平方根。如果样本就是总体，且X序列是真误差，那此时的RMS值等于RMSE（分子为n，不是n-1）。 <span class="em">1</span><span class="em">2</span><span class="em">3</span>
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