variance
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| Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
| variance [2025/08/24 11:53] – hkimscil | variance [2025/08/24 12:12] (current) – hkimscil | ||
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| * 따라서 분산값은 아래처럼 요약된다. | * 따라서 분산값은 아래처럼 요약된다. | ||
| \begin{eqnarray*} | \begin{eqnarray*} | ||
| - | \sigma & = & \dfrac {\text{SS}} {\text{df}} \\ | + | \sigma^2 & = & \dfrac {\text{SS}} {\text{df}} \\ |
| & = & \dfrac{\text{Sum of Error Square}}{\text{df}} \\ | & = & \dfrac{\text{Sum of Error Square}}{\text{df}} \\ | ||
| & = & \dfrac{\text{Sum of Residual Square}}{\text{df}} \\ | & = & \dfrac{\text{Sum of Residual Square}}{\text{df}} \\ | ||
| & = & \dfrac{\text{Sum of DS Square}}{\text{df}}, | & = & \dfrac{\text{Sum of DS Square}}{\text{df}}, | ||
| - | & = & \dfrac{\sum{(Yi - \overline{Y})^2}}{n-1} \\ | + | & = & \dfrac{\sum{(Yi - \overline{Y})^2}}{n-1}, \;\;\; \text{where } (Yi - \overline{Y}) = \text{Error, |
| - | & & | + | |
| \end{eqnarray*} | \end{eqnarray*} | ||
variance.1756004028.txt.gz · Last modified: 2025/08/24 11:53 by hkimscil