Level 2 Help for VLOOKUP

 This specifies one to five input image files.

 This specifies zero to five output image files.

 The standard SIZE parameter is:  (SL,SS,NL,NS)
 You can enter SL, SS, NL, and NS together as SIZE, OR enter the SL, SS, NL,
 and NS parameters separately.

 By default, the entire input image is used if these parameters are not
 entered.

 See Help SIZE

 See Help SIZE

 See Help SIZE

 See Help SIZE

 Starting band to use in a multi-band input image.

 Number of bands for a multi-band output image.

 This specifies the optional lookup table file.  If not entered, then the
 lookup table must be specified using the TABLE parameter.

 This specifies that the lookup table will be the standard table of the
 number specified.  As a historical note, the tables in this program are
 the pseudocolor tables of program IDX (previously, IDISPLAY).

 This specifies which column of the table corresponds to which output image.
 The nth value entered is the column for the nth output image.  If both
 COLUMN and TABLE are used, then COLUMN changes what part of the standard
 table is used for each output accordingly.