dear all,
i have performed indicator kriging with different thresholds (corresponding
to 10th percentiles). is it correct that the variogram of each
xth-percentile is bounded to:
max cov = xth_percentile* (1-xth_percentile) ??
e.g. max cov (30th perc.) = 0.21, max.cov (90th perc.) = 0.09
Jörg
Don't confuse indicator variables with classical
correlation coefficients.
The maximum possible on your semi-variogram will be
where all differences are 1. That is every pair is
(1-0). And, of course, divided by 2. So the absolute
maximum an indicator semi-variogram can show is 0.5.