REDUCEAVERAGE averages all the data currently contained in the point data arrays. The corresponding scans in the scans array (it will be automatically created when non-existent) will be updated. average will print out messages as to invalid (flagged) data encountered, and non-existing background scans. If you are reducing the data on a star-by-star basis, go back to load the next star and process it. If, for any reason, you want to postpone the following calibration of the scan data, you can write these data to a .cha file now (see below).