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Prefer lower ids on ties #25

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Prefer lower ids on ties #25

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4 changes: 2 additions & 2 deletions src/R_optics.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -145,10 +145,10 @@ List optics_int(NumericMatrix data, double eps, int minPts,
for (std::vector<int>::iterator it = seeds.begin();
it!=seeds.end(); ++it) {
// Note: The second part of the if statement ensures that ties are
// always broken consistenty (higher ID wins to produce the same
// always broken consistenty (lower ID wins to produce the same
// results as the elki implementation)!
if (reachdist[*it] < reachdist[*q_it] ||
(reachdist[*it] == reachdist[*q_it] && *q_it < *it)) q_it = it;
(reachdist[*it] == reachdist[*q_it] && *it < *q_it)) q_it = it;
}
q = *q_it;
seeds.erase(q_it);
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