This commit is contained in:
rriegel
2008-09-27 23:36:25 +00:00
parent f7ec3bdd71
commit 21caa819ca
+1 -1
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@@ -615,7 +615,7 @@ ultimately yielding the expression
\begin{equation}
W(Z_k) \frac{D + 2}{2 V_D(h_k)} \left( 1 - \frac{\delta(x,Z_k)}{h_k^2} \right)
\end{equation}
in place of the original kernal summation, where
in place of the original kernel summation, where
\begin{align}
\delta(x,Z_k) & = \lefteqn{\textstyle x \cdot x - 2x \cdot \frac{S(Z_k)}{W(Z_k)} + \frac{T(Z_k)}{W(Z_k)} ,} \\
S(Z_k) & = \sum_{\leftlim{(z,w) \in Z_k}} w z , & T(Z_k) & = \sum_{\leftlim{(z,w) \in Z_k}} w z \cdot z ;