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,       0,       0,       0
sgpcmbeC1.c1,2000,02 7:30:00,29 ,       0,34.29555,10.00935,11.07191
sgpcmbeC1.c1,2000,02 8:30:00,29 ,0.043271, 84.6414,38.05703, 24.2898
sgpcmbeC1.c1,2000,02 9:30:00,29 ,0.062548,105.4662,42.43393, 27.9192
sgpcmbeC1.c1,2000,0210:30:00,29 ,0.094146,142.7713,51.63444,37.80048
sgpcmbeC1.c1,2000,0211:30:00,29 ,0.213478,231.3492,61.07008,63.54719
sgpcmbeC1.c1,2000,0212:30:00,29 ,0.469729, 260.409,48.28973,62.89329
sgpcmbeC1.c1,2000,0213:30:00,29 ,0.400812,223.2941,54.88657,56.91712
sgpcmbeC1.c1,2000,0214:30:00,29 ,       0,235.3038,65.48482,58.61737
sgpcmbeC1.c1,2000,0215:30:00,29 ,0.013664,127.0715,48.37987,33.91312
sgpcmbeC1.c1,2000,0216:30:00,29 ,0.031069,108.2204,44.73853,25.94758
sgpcmbeC1.c1,2000,0217:30:00,29 ,0.000164,48.53912,21.44299,17.20255
sgpcmbeC1.c1,2000,0218:30:00,29 ,       0,6.230525,0.740968, 1.60178
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