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Invoke a Data Viewer

Description:

     Invoke a spreadsheet-style data viewer on a matrix-like R object.

Usage:

     View(x, title)

Arguments:

       x: an R object which can be coerced to a data frame with
          non-zero numbers of rows and columns.

   title: title for viewer window.  Defaults to name of 'x'.

Details:

     Object 'x' is coerced (if possible) to a data frame, and all
     non-numeric columns are then coerced to character.   The object is
     then viewed in a spreadsheet-like data viewer, a read-only version
     of 'data.entry'.

     If there are row names on the data frame that are not '1:nrow',
     they are displayed in a separate first column called 'row.names'.

     Objects with zero columns or zero rows are not accepted.

     The array of cells can be navigated by the cursor keys and Home,
     End, Page Up and Page Down (where supported by X11) as well as
     Enter and Tab.

Value:

     Invisible 'NULL'.  The functions puts up a window and returns
     immediately: the window can be closed via its controls or menus.

See Also:

     'edit.data.frame', 'data.entry'.

