Duration weighting gave 1.8 percentage points less mean overlap with count targets across records for top 20 percent FRandR lists in seven SEEG patients

High frequency oscillation (HFO) counts can hide differences in event duration. We tested whether duration weights help select recurring channels with high event counts. We used 135 public SEEG sleep records from seven patients in OpenNeuro ds003498 v1.1.1. The primary class was FRandR. We formed lists of the top 20 percent of structurally good bipolar pairs. Both source methods selected a count list in another record. We handled cutoff ties by their expected membership. Each patient had equal weight. Mean overlap was 70.59 percent for count sources and 68.78 percent for duration sources. The difference was -1.81 percentage points. The 95 percent patient bootstrap interval was -3.88 to +0.35 percentage points. The exact sign-flip test gave p = 0.1875. The point estimate favored count, but the interval included zero. These results do not establish a population decrease or equivalence. The package contains checked source files, duration features, code, results, figures, and retrieval instructions.

high frequency oscillations · stereoelectroencephalography · event duration · channel selection · repeatability · epilepsy