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    Summary of LR analysis S/W      V3.12  8/9/96
 
Key routines:           [ ] = optional arguments
 
 gratlog, 'file_name.dat' [,/HARDCOPY] [,/MORE_INFO] 
     read a data file and do normal processing to generate
       - file_name.log  results as text file
       - display contour plot of dp/p
       - create and put .ps files in /nfs/caliber/d1/lr/dat
       - enter summary information in database file
 
 gratview, 'file_name.dat'
     same as gratlog but does not create .log file or db entry
       - display contour plot of dp/p
 lr_many_contours
     plots many contours: dp/p, roll, pitch, yaw, intensities'
 lr_surface_plot
     plots 3D image of surface of sample
 
 period_specification, list_file [,/HARDCOPY] 
     create summary period information for a set of gratings
     using the most recent LR data files.  list_file is an
     ASCII file of grating IDs, one per line. 
 
 lr_ref_stab, list_file
     prints the reference dRoll and dP values for all LR
     files for all gratings in list_file.
 
Other routines:
 lr_summary
     type this list
 lr_readfile, 'file_name.dat'
     read in an LR datafile and put data in lr_datcom
 lr_fillanal
     analyze the data in lr_datcom and put results in lr_analcom
 lr_gratlog [, file_out, long_form]
     generate a results text file from the datcom and analcom data
 lr_fillcont 
     generate 2-D data for contour plots and put it in lr_contcom
 lr_contour [, which_data, level_multiplier]
     plot contour plot of dp/p.  By including which_data contours
     of other measured variables are plotted:
        0 - dp/p      2 - Line orient.      5 - I reflected
        1 - Pabs      3 - Yaw               6 - I reflected
                      4 - Pitch 
     The level_multiplier value can be used change the range of the
     contours levels by a factor.
 
 hardcopy output: To get hard copy of the contour plots use pre_print
     and post_print before/after the command, e.g.:
                 LR> pre_print
                 LR> lr_contour, 0, 2.0
                 LR> post_print
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