Ajusted R squaredWHAT'S THE MEAN OF "(Ajusted) R Rquared " IN SOFTWARE SPSS

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Ajusted R squaredWHAT'S THE MEAN OF
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Ajusted R squaredWHAT'S THE MEAN OF "(Ajusted) R Rquared " IN SOFTWARE SPSS
Ajusted R squared
WHAT'S THE MEAN OF "(Ajusted) R Rquared " IN SOFTWARE SPSS

Ajusted R squaredWHAT'S THE MEAN OF "(Ajusted) R Rquared " IN SOFTWARE SPSS
经调整后的R平方值.一般而言,在多元回归中,R值跟自变量的个数有关,自变量的个数越多,R相应就会越大.这时并不表示模型按拟合得更好.为了克服这个不足,人们想出了调整后的R平方.主要是在R平方的计算公式里考虑到变量的自由度.一般讲回归分析的书上都有.