Class Table

core/src/processing/data/Table.java:84–5033

Table objects store data with multiple rows and columns, much like in a traditional spreadsheet. Tables can be generated from scratch, dynamically, or using data from an existing file. Tables can also be output and saved to disk, as in the example above. Additional Table m

 * @see TableRow
 */
public class Table {
  protected int rowCount;

  protected String missingString = null;
  protected int missingInt = 0;
  protected long missingLong = 0;
  protected float missingFloat = Float.NaN;
  protected double missingDouble = Double.NaN;
  protected int missingCategory = -1;

  String[] columnTitles;
  HashMapBlows[] columnCategories;
  HashMap<String, Integer> columnIndices;

  protected Object[] columns;  // [column]

  // accessible for advanced users
  static public final int STRING = 0;
  static public final int INT = 1;
  static public final int LONG = 2;
  static public final int FLOAT = 3;
  static public final int DOUBLE = 4;
  static public final int CATEGORY = 5;
  int[] columnTypes;

  protected RowIterator rowIterator;

  // 0 for doubling each time, otherwise the number of rows to increment on
  // each expansion.
  protected int expandIncrement;


  /**
   * Creates a new, empty table. Use addRow() to add additional rows.
   */
  public Table() {
    init();
  }

  /**
   * @nowebref
   */
  public Table(File file) throws IOException {
    this(file, null);
  }


  /**
   * version that uses a File object; future releases (or data types)
   * may include additional optimizations here
   *
   * @nowebref
   */
  public Table(File file, String options) throws IOException {
    // uses createInput() to handle .gz (and eventually .bz2) files
    init();
    parse(PApplet.createInput(file),
          extensionOptions(true, file.getName(), options));