@Test public void testNcols() { System.out.println("ncols"); assertEquals(5, df.ncols()); }
@Override public int ncols() { return df.ncols(); }
IndexDataFrame implements DataFrame { @Override public int ncols() { return df.ncols(); } }
IndexDataFrame implements DataFrame { @Override public int ncols() { return df.ncols(); } IndexDataFrame(DataFrame df, int[] index); }
IndexDataFrame implements DataFrame { @Override public int ncols() { return df.ncols(); } IndexDataFrame(DataFrame df, int[] index); @Override StructType schema(); @Override String toString(); @Override Iterator<BaseVector> iterator(); @Override int columnIndex(String name); @Override int size(); @Override int ncols(); @Override Object get(int i, int j); @Override Stream<Tuple> stream(); @Override BaseVector column(int i); @Override Vector<T> vector(int i); @Override BooleanVector booleanVector(int i); @Override CharVector charVector(int i); @Override ByteVector byteVector(int i); @Override ShortVector shortVector(int i); @Override IntVector intVector(int i); @Override LongVector longVector(int i); @Override FloatVector floatVector(int i); @Override DoubleVector doubleVector(int i); @Override StringVector stringVector(int i); @Override DataFrame select(int... cols); @Override DataFrame drop(int... cols); @Override DataFrame merge(DataFrame... dataframes); @Override DataFrame merge(BaseVector... vectors); @Override DataFrame union(DataFrame... dataframes); @Override Tuple get(int i); }
IndexDataFrame implements DataFrame { @Override public int ncols() { return df.ncols(); } IndexDataFrame(DataFrame df, int[] index); @Override StructType schema(); @Override String toString(); @Override Iterator<BaseVector> iterator(); @Override int columnIndex(String name); @Override int size(); @Override int ncols(); @Override Object get(int i, int j); @Override Stream<Tuple> stream(); @Override BaseVector column(int i); @Override Vector<T> vector(int i); @Override BooleanVector booleanVector(int i); @Override CharVector charVector(int i); @Override ByteVector byteVector(int i); @Override ShortVector shortVector(int i); @Override IntVector intVector(int i); @Override LongVector longVector(int i); @Override FloatVector floatVector(int i); @Override DoubleVector doubleVector(int i); @Override StringVector stringVector(int i); @Override DataFrame select(int... cols); @Override DataFrame drop(int... cols); @Override DataFrame merge(DataFrame... dataframes); @Override DataFrame merge(BaseVector... vectors); @Override DataFrame union(DataFrame... dataframes); @Override Tuple get(int i);  }