class TFTable: public TFIOElement

 Default constructor. The table has no columns, no rows and is not
 associated with a table in a file.
 Don't use this constructor. The table should have at least a name.

 the table is created from all branches of the tree which store simple
 variables. The othere branches are skipped.
 Warning:
 This function sets the "branch status process" (tree->SetBranchStatus())
 of all branches which can be copied into a TFTable to 1 and set the
 status of all other branches to 0.

 The table has no columns, numRows rows and is not associated with a table
 in a file. name is the id of the new table. Default value of numRows is 0.

 A new table is created. It has no columns, no rows but is associated
 with a table in a file. name is the id of the new table.
 fileName is the file name of the file with this new table.
 The file extension define the used file type:
 *.fits, *.fts, *fit and *.fits.gz define a FITS file.
 *.root define a ROOT file and
 *.asro and anything else define a ASRO file.
 The file may already exist or will be created. Other objects with the
 same name can exist without problem in the same file. Each object with
 the same name has a unique cycle number. Use GetCycle() to ask for this
 cycle number. Use the global function TFReadTable() to read and
 update an already existing table from an ASRO file, a ROOT file or a
 FITS file.

 Copy constructor. But even if the input table is associated with a table
 in a file, this new table is NOT associated with this or an other
 table in a file. The new table exist only in memory.

 Also the columns of this table are deleted from memory.

 Even if the input table is associated with a table in a file,
 this table is NOT associated with this or an other table in a
 file. If this table was associates with a table in a file before
 this function the file is closed without update. After this function
 call this table exist only in memory, but can be saved in a file
 with the SaveElement() function.

 Adds one column to the table. The column names in one table have to
 be unique. If a column with the same name already exist and replace ==
 kTRUE the old column is deleted and replaced by the new one. If
 replace == kFALSE (the default value) the new column is not added to
 the table and an error is written to the TFError class.
 The column is adopted to the table and will be deleted by the table
 when the table is deleted from memory.
 The number of rows of the column will be increased or decreased to the
 number of rows of the table, respectively.

 Creates a new column of type colDataType and adds it to the table.
 The column names in one table have to be unique. If a column with
 the same name already exist and replace == kTRUE the old column is
 deleted and replaced by the new one. If replace == kFALSE (the default
 value) the new column is not added to the table and either TFException
 is thrown or a reference to the already existing column named "name"
 is returned, depending on a call of TFError::SetErrorType().
 The column is adopted to the table and will be deleted by the table
 when the table is deleted from memory.
 The number of rows of the new column will be set to the number of rows
 of the table.
 Use the static member function Class() of the required column data type
 to pass a TClass variable at the second parameter.

 Deletes the column with the id name from this table and
 from memory.
 If the table is associated with a file the column is also immediately
 deleted in the file without calling the SaveElement() function.
 If a column with the id "name" does not exist in this table the function
 does nothing, no warning and no error message.

 Gets a reference of the column with name "name". The column is still
 adopted to the table and will be deleted from memory when the
 table is deleted.
 If no column with name "name" exist in the table a TFException is thrown
 or a reference to a NULL pointer is returned, depending on a call of
 TFError::SetErrorType().

 Returns an iterator for all columns. This iterator can be used
 to retrieve all columns if their names are unknown.

 Returns an iterator for all rows of this table. This iterator can
 be used to sort the rows depending on a column and to filter rows.
 The filter can be expressed with a c - statement and can depend on
 values in any column and on row number. See TFRowIter for more
 information on sorting and filter.

 Insert rows into the table. All columns of the table are updated.
 pos is the first index of the new rows. If pos is greater than the
 actual number of rows in the table all new rows are inserted at the
 end of the table. The index of the row number is 0 based.
 The table in the file is not updated. Use the SaveElement() to
 update the table in the ASRO, ROOT or FITS file.

 Delete numRows from all columns. The first removed column has the
 index pos. The index of the row numbers is 0 based.
 If pos + numRows is greater than the actual number of rows all
 rows beginning with row number pos are deleted. If pos is greater
 or equal than the actual number of rows than no rows are deleted.
 But if pos == TF_MAX_ROWS the last numRows of the table are removed.

 Returns the actual number of columns in the table (in memory and in
 file)

 To avoid memory movements each time a new row is inserted
 into the table some additional rows are allocated more than
 necessary. These additional rows are used the next time new
 rows are inserted. "rows" defines the maximum number of rows that
 can be used before new memory will be allocated.

 reads one column from the ASRO, ROOT or FITS file into memory.
 private function. Use GetColumn to retrieve a column from this table

 Reads all not yet read columns from the ASRO, ROOT or FITS file into memory
 Private function, called automatically if needed.

 Updates the table in the ASRO, ROOT or FITS file with the data of this
 table in memory. If fileName is defined the old file is closed and the
 table is written into this new file named fileName.
 compLevel defines the compression level in the ASRO and ROOT file. It is
 not used for FITS files. To set compLevel and to update the table in the
 same file set fileName to an empty string "".
 This function without any parameter has to be used to update the
 ASRO, the ROOT or the FITS file with any change of the table.
 This function does nothing if the table was opened with kFRead

 Deletes the table in the file, but not in memory.
 Closes the file and deletes the file if this table is the
 last element in the file.
 Note: Some columns of the table may not yet be read from the table
       and are not in memory. Set updateMemory to kTRUE to have access
       to all columns of this table after it is deleted in the file.
       The default value of updateMemeory is kFALSE.

 creates a TTree from all basic column of this table. Each
 column is copied in one branch of the tree. The tree gets
 the name of this table, each branch gets the name of its
 column.
 nameConvert can be NULL. But it will be adopted by this
 function and will be deleted by this function if it is not NULL.
 The calling function has to delete the returning tree.

 A TGraphErrors is created from all data of two columns and two further
 columns can be used for the errors. The column names, used to fill the
 graph has to be passed as the first 4 parameters.
 It is possible to use columns of different tables: The first time call
 MakeGraph with graph == NULL and some column names may be set to NULL
 as well. Call MakeGraph of the further tables and pass the returned graph of
 the first call as the 5th parameter. At any call column names
 can be set to NULL or "". These are not used to fill the graph.
 The number of points of the graph is the number of rows of the first
 table.
 It is not necessary to derfine columns for the X - and Y - errors.
 Null values in a column are set to 0 in the graph, for the X - and Y
 values as well as for the errors.

 If the first table has less than 2 rows or if a column does not exist
 in the table an error message is written to TFError.