datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2000,03 0:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,03 1:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,03 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,03 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,03 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,03 5:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,03 6:30:00,31 ,       0,14.59054,2.183467,4.288316
sgpcmbeC1.c1,2000,03 7:30:00,31 ,       0,55.67003,20.45335,22.03593
sgpcmbeC1.c1,2000,03 8:30:00,31 ,0.028949,105.9344,34.10218,31.70877
sgpcmbeC1.c1,2000,03 9:30:00,31 ,0.082432,248.6086,41.12428,50.53854
sgpcmbeC1.c1,2000,0310:30:00,31 ,0.041125,127.5988,34.52489,38.42812
sgpcmbeC1.c1,2000,0311:30:00,31 ,0.303915,261.9787,77.39032, 93.7885
sgpcmbeC1.c1,2000,0312:30:00,31 ,0.213014,282.3701,69.39942,91.66124
sgpcmbeC1.c1,2000,0313:30:00,31 ,0.192471,306.6306, 86.4372,98.47776
sgpcmbeC1.c1,2000,0314:30:00,31 ,0.180654, 248.618,84.45949,82.06385
sgpcmbeC1.c1,2000,0315:30:00,31 ,0.081131,217.4999, 70.7028,69.39778
sgpcmbeC1.c1,2000,0316:30:00,31 ,       0,156.2687,50.57333,44.45366
sgpcmbeC1.c1,2000,0317:30:00,31 ,       0,85.35749,32.39844, 25.9435
sgpcmbeC1.c1,2000,0318:30:00,31 ,       0,23.16113,5.425634,7.645424
sgpcmbeC1.c1,2000,0319:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0320:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0321:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0322:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0323:30:00,31 ,       0,       0,       0,       0