records.add(new PeakRecord(start, end, score, timeScores));
}
// Write out index
indexPosition = peakWriter.getWrittenCount();
peakWriter.writeInt(chrIndex.size());
for (Map.Entry<String, Long> entry : chrIndex.entrySet()) {
peakWriter.writeString(entry.getKey());
peakWriter.writeLong(entry.getValue());
}