NAME:
  focscan
 PURPOSE:
  Summarize and plot focus log files from PCCD.
 DESCRIPTION:

 CATEGORY:
  2-D plotting
 CALLING SEQUENCE:
  focscan,file
 INPUTS:
  file - String with name of focus log file to be read.
 OPTIONAL INPUT PARAMETERS:

 KEYWORD INPUT PARAMETERS:
  PRINT - Flag, if set will generate plots (two per page) to PS device
            and printed on the default printer.
 OUTPUTS:

 KEYWORD OUTPUT PARAMETERS:

 COMMON BLOCKS:

 SIDE EFFECTS:

 RESTRICTIONS:

 PROCEDURE:

 MODIFICATION HISTORY:
  Written by Marc W. Buie, 2001/03/22, Lowell Observatory.