datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,02 0:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,02 1:30:00,20 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,02 2:30:00,19 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,02 3:30:00,20 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,02 4:30:00,22 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,02 5:30:00,24 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,02 6:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,02 7:30:00,28 ,2.563517,28.55647,11.85987,6.406107
sgpcmbeC1.c1,2003,02 8:30:00,28 ,5.879524, 53.4274,23.58351,14.30571
sgpcmbeC1.c1,2003,02 9:30:00,28 ,1.363137,69.68523,26.95891,20.10904
sgpcmbeC1.c1,2003,0210:30:00,27 ,1.876691,126.4106,30.34845,30.01323
sgpcmbeC1.c1,2003,0211:30:00,27 ,0.758444, 163.156,34.46139,31.07509
sgpcmbeC1.c1,2003,0212:30:00,26 ,0.560373, 142.999,34.13397,31.94993
sgpcmbeC1.c1,2003,0213:30:00,26 ,0.617782,69.51661,26.23549,20.83495
sgpcmbeC1.c1,2003,0214:30:00,28 ,0.672067, 89.5022, 28.4711,22.65832
sgpcmbeC1.c1,2003,0215:30:00,28 ,3.031794,65.33823, 27.8207,17.08192
sgpcmbeC1.c1,2003,0216:30:00,28 ,2.972172,58.29088,23.62188,17.45628
sgpcmbeC1.c1,2003,0217:30:00,28 ,5.368984,36.19663,17.34474,9.439786
sgpcmbeC1.c1,2003,0218:30:00,28 ,       0,7.995634,2.398764,2.498442
sgpcmbeC1.c1,2003,0219:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0220:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0221:30:00,23 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0222:30:00,21 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0223:30:00,22 ,       0,       0,       0,       0