code: public static void filterInnerPoints(DenseMatrix64F points, DenseMatrix64F center, int minLeft, double percent)
      {
          assert points.numCols == 2;
          assert center.numCols == 1;
          assert center.numRows == 2;
          if (percent <= 0 || percent >= 1)
          {
              throw new IllegalArgumentException("percent "+percent+" is not between 0 & 1");
          }
          DistComp dc = new DistComp(center.data[0], center.data[1]);
          Matrices.sort(points, dc);
          int rows = points.numRows;
          double[] d = points.data;
          double limit = dc.distance(d[0], d[1])*percent;
          for (int r=minLeft;r<rows;r++)
          {
              double distance = dc.distance(d[2*r], d[2*r+1]);
              if (distance < limit)
              {
                  points.reshape(r/2, 2, true);
                  break;
              }
          }
      }
docs: Filters points which are closes to the last estimated tempCenter.
  @param points
  @param center