docs: @Override
    public void increment(double coord, double value) {
      // Store in cache
      if (cachefill >= 0) {
        if (cachefill < cachec.length) {
          cachec[cachefill] = coord;
          cachev[cachefill] = value;
          cachefill ++;
          return;
        } else {
          materialize();
          // But continue below!
        }
      }
      // Check if we need to resample to accomodate this bin.
      testResample(coord);
      // super class will handle histogram resizing / shifting
      super.increment(coord, value);
    }