datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,06 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,06 1:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,06 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,06 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,06 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,06 5:30:00,30 ,       0, 12.0983,4.347015,3.621191
sgpcmbeC1.c1,1999,06 6:30:00,30 ,0.239864,55.65185,25.99574,18.93265
sgpcmbeC1.c1,1999,06 7:30:00,30 ,       0,102.2895,56.90374,35.17621
sgpcmbeC1.c1,1999,06 8:30:00,30 ,2.971014,137.0805,84.41604,42.57507
sgpcmbeC1.c1,1999,06 9:30:00,30 , 17.3716,162.0485,114.3269,46.13199
sgpcmbeC1.c1,1999,0610:30:00,30 ,0.037286, 175.266,121.5983,53.63441
sgpcmbeC1.c1,1999,0611:30:00,30 ,0.927089,187.2998,128.7274,57.38784
sgpcmbeC1.c1,1999,0612:30:00,30 , 1.90739,186.8892, 123.815,60.31012
sgpcmbeC1.c1,1999,0613:30:00,30 ,5.482498,183.4475,118.5075,54.91005
sgpcmbeC1.c1,1999,0614:30:00,30 ,4.805635, 173.233,115.1217,51.23233
sgpcmbeC1.c1,1999,0615:30:00,30 , 1.68606,156.4263,103.8815,46.67888
sgpcmbeC1.c1,1999,0616:30:00,30 ,0.856145,130.8302,88.15302,34.13692
sgpcmbeC1.c1,1999,0617:30:00,30 , 0.83926,98.65612,58.56372,29.67603
sgpcmbeC1.c1,1999,0618:30:00,30 ,       0,63.28481,27.72912,18.21914
sgpcmbeC1.c1,1999,0619:30:00,30 ,       0,13.65482,5.588069, 4.00072
sgpcmbeC1.c1,1999,0620:30:00,30 ,       0,0.512409, 0.01708,0.093553
sgpcmbeC1.c1,1999,0621:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0622:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0623:30:00,30 ,       0,       0,       0,       0