spec - Local Sector 7 web page

#S number Starts a new scan. number is the user’s numberingscheme.#M number Indicates data was taken counting to number monitorcounts.#T number Indicates data was taken counting for number seconds.#N number Indicates there are number columns of data.The following control lines do nothing, although they will be printed to the screenwhile reading a scan.#C comment ... Conventionally a comment.#D date Conventionally the date.#L lab1 lab2 ... Conventionally data column labels, with each label separatedby two spaces.Data ColumnsBy default, x values are taken from the first column, y values from the last column.Monitor counts are always taken from the column prior to the y column.When entering column numbers, a negative number counts backwards from the lastcolumn. If the column for x is zero, the value put in for x is just the row number ofthe point with respect to the start of the data for the current scan.MoreDetailsAfter scans.4 reads and indexes a data file, it remembers the file length. If youanswer affirmative to the Change modes? query, scans.4 will add to the index if thefile has lengthened.If you give a dot (.) asthe command line argument or in response to Scans/optionsquery, the previous argument or option string will be used. That is, the string isremembered, not the options chosen interactively using Change modes? Forinstance, if you enter a long sequence of scan numbers and read in the scans, thenchange something via Change modes? ,you can simply enter a dot in response toScans/options and recover the previous sequence of scan numbers.When you do enter a string of flags and scan numbers, the modes set by the flags onlyapply to the scans that follow the flags and not the preceding scans.INTERIM WORK-IN-PROGRESS (8/16/01) NOT FOR GENERAL DISTRIBUTION USER MANUAL AND TUTORIALS 39