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Next: Lev A. Zhivotovsky (1999) Up: SMM distances Previous: average square distance (ASD)

Shriver et al.'s (1995) [Shriver, M.D. 95]


\begin{displaymath}
D_{SW}=W_{XY}-\frac{\left( W_{X}+W_{Y}\right) }{2}\end{displaymath}

where \( W_{X}=\frac{\sum ^{r}_{k}\sum _{i\neq j}\left( \left\vert i-j\right\vert x_{ik}x_{jk}\right) }{r} \), \( W_{Y}=\frac{\sum ^{r}_{k}\sum _{i\neq j}\left( \left\vert i-j\right\vert y_{ik}y_{jk}\right) }{r} \), \( W_{XY}=\frac{\sum ^{r}_{k}\sum _{i\neq j}\left( \left\vert i-j\right\vert x_{ik}y_{jk}\right) }{r} \)



Olivier Langella 2002-03-20