MATLAB 多元回归 t检验自变量是x1-x4,因变量y改了一点程序向用还是用不了,求大神看下.谁再能解释下程序的意思.z=[x1,x2,x3,x41,x42];y=A(:,1); % example[n,k]=size(z);X=[ones(n,1),z];%构建结构阵XB=X'*X; %求算信
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![MATLAB 多元回归 t检验自变量是x1-x4,因变量y改了一点程序向用还是用不了,求大神看下.谁再能解释下程序的意思.z=[x1,x2,x3,x41,x42];y=A(:,1); % example[n,k]=size(z);X=[ones(n,1),z];%构建结构阵XB=X'*X; %求算信](/uploads/image/z/12532046-14-6.jpg?t=MATLAB+%E5%A4%9A%E5%85%83%E5%9B%9E%E5%BD%92+t%E6%A3%80%E9%AA%8C%E8%87%AA%E5%8F%98%E9%87%8F%E6%98%AFx1-x4%2C%E5%9B%A0%E5%8F%98%E9%87%8Fy%E6%94%B9%E4%BA%86%E4%B8%80%E7%82%B9%E7%A8%8B%E5%BA%8F%E5%90%91%E7%94%A8%E8%BF%98%E6%98%AF%E7%94%A8%E4%B8%8D%E4%BA%86%2C%E6%B1%82%E5%A4%A7%E7%A5%9E%E7%9C%8B%E4%B8%8B.%E8%B0%81%E5%86%8D%E8%83%BD%E8%A7%A3%E9%87%8A%E4%B8%8B%E7%A8%8B%E5%BA%8F%E7%9A%84%E6%84%8F%E6%80%9D.z%3D%5Bx1%2Cx2%2Cx3%2Cx41%2Cx42%5D%3By%3DA%28%3A%2C1%29%3B+%25+example%5Bn%2Ck%5D%3Dsize%28z%29%3BX%3D%5Bones%28n%2C1%29%2Cz%5D%3B%25%E6%9E%84%E5%BB%BA%E7%BB%93%E6%9E%84%E9%98%B5XB%3DX%27%2AX%3B+%25%E6%B1%82%E7%AE%97%E4%BF%A1)
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