Note: Please see the newer ERRORPLOT function, which replicates the functionality of this older routine but offers an interactive interface and updated functionality.
            The PLOTERR procedure plots individual data points with error bars.
            This routine is written in the IDL language. Its source code can be found in the file ploterr.pro in the lib subdirectory of the IDL distribution.
            Syntax
            PLOTERR, [ X ,] Y , Err [, TYPE={1 | 2 | 3 | 4}] [, PSYM=integer{1 to 10}]
            Arguments
            X
            An optional array of X values. The procedure checks the number of arguments passed to decide if X was passed. If X is not passed, INDGEN(Y) is assumed for X values.
            Y
            The array of Y values. Y cannot be of type string.
            Err
            The array of error-bar values.
            Keywords
            TYPE
            The type of plot to be produced. The possible types are: 
                             - 1 = X Linear - Y Linear (default) 
- 2 = X Linear - Y Log 
- 3 = X Log - Y Linear 
- 4 = X Log - Y Log
PSYM
            The plotting symbol to use. The default is +7.
            Version History
            
            See Also
            ERRPLOT Procedure, ERRORPLOT, OPLOTERR Procedure, PLOT Procedure