usage: jretile in=... out=... segin=... segout=... histlink=... MEMUSE=...
         PERM=... VERB=... CALVERKEY=... LMIN=... LMAX=... LCHUNK=...
         TSTART=... TTOTAL=... TCHUNK=...
  in (string): input data records
    (no default)
  out (string): output data series
    (no default)
  segin (string): input data segment
    default value: not specified
  segout (string): output data segment
    default value: not specified
  histlink (string): name of link to ancillary dataseries for processing metadata
    default value: HISTORY
  MEMUSE (int): set to 0 to minimize use of file descriptors and memory, set to 1 to read slices and write whole files, 2 to read whole files and write slices, 3 to read whole files and write whole files.
    default value: 3
  PERM (int): set to 0 for transient records, nonzero for permanent records
    default value: 1
  VERB (int): option for level of verbosity: 0=only error and warning messages; >0=print messages outside of loop; >1=print messages inside loop; >2=debugging output
    default value: 1
  CALVERKEY (int): short integer bit mask determining which 4-bit fields of CALVER64 are permitted to change on input.  set the bit to disallow change of the corresponding nybble.
    default value: 2
  LMIN (int): minimum l in output
    default value: 0
  LMAX (int): maximum l in output
    default value: 0
  LCHUNK (int): size of output chunk in l
    default value: 0
  TSTART (time): start time of first output record
    (no default)
  TTOTAL (string): total length of time in output
    (no default)
  TCHUNK (string): length of output timeseries
    default value: not specified