Examples of water.fvec.Vec.open()

water.fvec.Vec.open()
Create a writer for bulk serial writes into this Vec

        writers[i] = frame.vecs()[i].open();
      }


      if (reader.getKeyClass() == Text.class) {
        labels = frame.anyVec().makeZero();
        labelwriter = labels.open();
      }


      long r = 0;
      while (reader.next(key, value)) {
        Vector v = value.get();

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    // If string labeled matrix, create aux Vec
    Map<String,Integer> map = m.getRowLabelBindings();
    if (map != null) {
      // label vector must be similarly partitioned like the Frame
      labels = frame.anyVec().makeZero();
      Vec.Writer writer = labels.open();
      Map<Integer,String> rmap = reverseMap(map);


      for (long r = 0; r < m.rowSize(); r++) {
        writer.set(r, rmap.get(r));
      }

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