datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2000,02 0:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,02 1:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,02 2:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,02 3:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,02 4:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,02 5:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,02 6:30:00,29 ,       0,1.327583,0.045779,0.246526
sgpcmbeC1.c1,2000,02 7:30:00,29 ,       0,25.72431,12.73014,5.536015
sgpcmbeC1.c1,2000,02 8:30:00,29 ,3.948488,34.43441,13.60188,8.944342
sgpcmbeC1.c1,2000,02 9:30:00,29 ,1.662991,40.20209,14.51212,11.64624
sgpcmbeC1.c1,2000,0210:30:00,29 ,0.754854,118.4089, 27.8105,33.85352
sgpcmbeC1.c1,2000,0211:30:00,29 ,0.746457,121.5812, 32.3449,30.97855
sgpcmbeC1.c1,2000,0212:30:00,29 ,0.403625,105.7979,31.72176,30.84916
sgpcmbeC1.c1,2000,0213:30:00,29 ,0.487657, 115.511,27.18051,29.07916
sgpcmbeC1.c1,2000,0214:30:00,29 ,0.928839,80.81338,28.09248,25.52278
sgpcmbeC1.c1,2000,0215:30:00,29 ,1.285352,106.9325,23.00857,23.71586
sgpcmbeC1.c1,2000,0216:30:00,29 ,2.375288,54.76038, 20.3833,14.59544
sgpcmbeC1.c1,2000,0217:30:00,29 ,5.018836,33.21815,18.15636,8.592907
sgpcmbeC1.c1,2000,0218:30:00,29 ,       0,8.836267,2.991739,2.704639
sgpcmbeC1.c1,2000,0219:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0220:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0221:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0222:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0223:30:00,26 ,       0,       0,       0,       0