docs: public Group init(final String priKey, final int count, final double estimate, final double ub,
        final double lb, final double fraction, final double rse) {
      this.count = count;
      est = estimate;
      this.ub = ub;
      this.lb = lb;
      this.fraction = fraction;
      this.rse = rse;
      this.priKey = priKey;
      return this;
    }