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 ,       0,17.67907,3.705768,5.539139
sgpcmbeC1.c1,1999,06 6:30:00,30 ,0.020291,52.74582, 19.9794,18.86898
sgpcmbeC1.c1,1999,06 7:30:00,30 ,       0,134.8134,42.30564,35.39277
sgpcmbeC1.c1,1999,06 8:30:00,30 ,0.098677, 183.677,58.57149,49.86514
sgpcmbeC1.c1,1999,06 9:30:00,30 , 0.20039,249.4009,98.35867,78.74905
sgpcmbeC1.c1,1999,0610:30:00,30 ,0.371633,292.0117,110.2706,94.26618
sgpcmbeC1.c1,1999,0611:30:00,30 ,0.135933,313.7066,129.8792,111.5441
sgpcmbeC1.c1,1999,0612:30:00,30 , 0.24968,339.2154,133.1169,119.6214
sgpcmbeC1.c1,1999,0613:30:00,30 ,       0,345.1815,119.1077,115.7605
sgpcmbeC1.c1,1999,0614:30:00,30 ,       0,304.2679,121.7627, 99.2401
sgpcmbeC1.c1,1999,0615:30:00,30 ,       0,255.0437,95.10096,77.70322
sgpcmbeC1.c1,1999,0616:30:00,30 ,0.132931,217.4359,87.31568,62.51947
sgpcmbeC1.c1,1999,0617:30:00,30 ,0.014964,129.9919,45.16382,38.09069
sgpcmbeC1.c1,1999,0618:30:00,30 ,       0,49.75888,21.83115,20.81833
sgpcmbeC1.c1,1999,0619:30:00,30 ,       0,18.59033,5.684509,7.060439
sgpcmbeC1.c1,1999,0620:30:00,30 ,       0,0.015078,0.000503,0.002753
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