matlab 求解均方根误差

在Matlab中，可以使用以下公式来计算均方根误差（Root Mean Square Error，RMSE）：

function RMSE = calculateRMSE(X, Y)
    if any(size(X)~=size(Y))
        error('The input size is not equal to each other!');
    end
    D = X - Y;
    MSE = sum(D(:).*D(:))/prod(size(X));
    RMSE = sqrt(MSE);
end

其中，X和Y分别表示观测值和真实值。通过调用这个函数，可以得到均方根误差的值。
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