diff --git a/nbr/src/main/java/io/nosqlbench/scenarios/simframe/stabilization/StatBucket.java b/nbr/src/main/java/io/nosqlbench/scenarios/simframe/stabilization/StatBucket.java index ffb98c5a2..3c489cd45 100644 --- a/nbr/src/main/java/io/nosqlbench/scenarios/simframe/stabilization/StatBucket.java +++ b/nbr/src/main/java/io/nosqlbench/scenarios/simframe/stabilization/StatBucket.java @@ -63,7 +63,8 @@ public final class StatBucket { } public double variance() { - return dSquared / ringbuf.count(); + double variance = dSquared / ringbuf.count(); + return (variance < 0) ? Math.abs(variance) : variance; } public double stddev() {