regression
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regression [2019/12/06 08:24] – hkimscil | regression [2019/12/06 08:25] – hkimscil | ||
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간혹, 다른 교재를 보면, | 간혹, 다른 교재를 보면, | ||
- | $b = r * \displaystyle \frac{s_{Y}}{s_{X}}$ | + | $$b = r * \displaystyle \frac{s_{Y}}{s_{X}} |
와 같이 나타나는데 이 둘은 같은 의미를 갖는다. | 와 같이 나타나는데 이 둘은 같은 의미를 갖는다. | ||
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r & = & \displaystyle \frac{SP}{\sqrt{SS_X SS_Y}}\text{, | r & = & \displaystyle \frac{SP}{\sqrt{SS_X SS_Y}}\text{, | ||
SP & = & r * \displaystyle \sqrt{SS_X SS_Y} \quad \text{and} \\ | SP & = & r * \displaystyle \sqrt{SS_X SS_Y} \quad \text{and} \\ | ||
+ | \\ | ||
b & = & \displaystyle \frac{SP}{SS_X} \\ | b & = & \displaystyle \frac{SP}{SS_X} \\ | ||
& = & \displaystyle \frac{r * \sqrt{SS_X SS_Y}}{SS_X} | & = & \displaystyle \frac{r * \sqrt{SS_X SS_Y}}{SS_X} |
regression.txt · Last modified: 2023/05/24 08:53 by hkimscil