me(
          this.row.rootViewState.displayStatisticName, referenceHistogram);
      const statisticScalar = this.histogram.getStatisticScalar(
          statName, referenceHistogram);
      this.$.scalar.setValueAndUnit(
          statisticScalar.value, statisticScalar.unit);

      this.isHistogramOpen = isOpen;
    },

    showOverview() {
      this.$.overview_container.style.display = 'block';
      if (this.overviewChart_ !== undefined) return;

      this.row.sortSubRows();
      let referenceDispla