Spatial correlation dimension
C(R)   = p(r <R)/P
     = 2p(r <R)/(N(N-1)
where p(r <R) is the
number of pairs
separated by less than R
km and P=N(N-1)/2 is the
total number of pairs for
N events.
The slope of the straight segment over distance range [A,B] is
used to estimate the spatial correlation dimension CD=d[A,B].
Sixth Workshop on Non-Linear
Dynamics and Earthquake Prediction
The Abdus Salam ICTP, Miramare
16/10/2001
22