private Optional<Histogram> diff_(Histogram cur, Histogram prev, double interval) { try { return Optional.of(Histogram.divide(Histogram.subtract(cur, prev), interval)); } catch (IllegalArgumentException ex) { return Optional.empty(); } }
private Optional<Histogram> diff_(Histogram cur, Histogram prev, double interval) { try { return Optional.of(Histogram.divide(Histogram.subtract(cur, prev), interval)); } catch (IllegalArgumentException ex) { return Optional.empty(); } }