4if [ -z $JPP_DIR ]; then
 
    5    echo "Variable JPP_DIR undefined."
 
    9source $JPP_DIR/setenv.sh $JPP_DIR >& /dev/null
 
   11set_variable:  DEBUG       CALIBRATION_DEBUG      1
 
   12set_variable   WORKDIR     ${TMPDIR:-/tmp}/
 
   13set_variable   FORMULA     "[0] * exp([1]*sqrt(x) + [2]*x)  +  [3]"
 
   15set_variable   XMAX        255.5
 
   16set_variable:  FORMAT      GRAPHICS_FORMAT        gif
 
   17set_variable+  BATCH       GRAPHICS_BATCH         -B
 
   20    usage "$script <input file> [working directory]"
 
   24    2)  set_variable WORKDIR      $2;&
 
   25    1)  set_variable INPUT_FILE   $1;;
 
   26    *)  fatal "Wrong number of arguments.";;
 
   31X=(-0.5  3.5  6.5  9.5 12.5 15.5 18.5 
 
   32   20.5 21.5 22.5 23.5 24.5 25.5 26.5 27.5 28.5 29.5
 
   33   30.5 31.5 32.5 33.5 34.5 35.5 36.5 37.5 38.5 39.5
 
   34   40.5 42.5 44.5 46.5 48.5
 
   35   50.5 52.5 54.5 56.5 58.5
 
   40   100.5 120.5 140.5 160.5 180.5 200.5 250.5)
 
   45    -o $WORKDIR/rebin.root                 
 
   48    -f $WORKDIR/rebin.root:hb              \
 
   50    -> "time-over-threshold [ns]"         \
 
   51    -\^ "#partialL/#partialt"              \
 
   53    -o $WORKDIR/gradient.$FORMAT           $BATCH
 
   58    -o $WORKDIR/frodo.root                 \
 
   66    -f $WORKDIR/frodo.root:h0              \
 
   68    -> "time-over-threshold [ns]"         \
 
   70    -T "Time-slewing correction"           \
 
   71    -o $WORKDIR/slewing.$FORMAT            $BATCH