datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2000,02 0:30:00,27 ,       0,0.228805,0.014145,0.051258
sgpcmbeC1.c1,2000,02 1:30:00,26 ,       0,0.064244, 0.00444,0.014188
sgpcmbeC1.c1,2000,02 2:30:00,25 ,       0,0.047424,0.004106,0.011553
sgpcmbeC1.c1,2000,02 3:30:00,26 ,       0,0.051417,0.001978,0.010084
sgpcmbeC1.c1,2000,02 4:30:00,26 ,       0,0.011176,0.000676,0.002346
sgpcmbeC1.c1,2000,02 5:30:00,27 ,       0,0.002169,0.000093, 0.00042
sgpcmbeC1.c1,2000,02 6:30:00,29 ,       0,0.597906,0.033437,0.113837
sgpcmbeC1.c1,2000,02 7:30:00,29 ,0.620756,64.67477,22.88097,17.20863
sgpcmbeC1.c1,2000,02 8:30:00,29 ,9.372824,266.0232,149.2653,67.95478
sgpcmbeC1.c1,2000,02 9:30:00,29 ,27.70415,463.5093,303.8443,125.8548
sgpcmbeC1.c1,2000,0210:30:00,29 ,82.74779,619.4549,457.5846,149.9944
sgpcmbeC1.c1,2000,0211:30:00,29 ,89.75689,723.1829,546.7567, 174.642
sgpcmbeC1.c1,2000,0212:30:00,29 ,157.5267,769.6404,571.1764,180.2824
sgpcmbeC1.c1,2000,0213:30:00,29 ,111.2003,753.0872,542.1592,190.9067
sgpcmbeC1.c1,2000,0214:30:00,29 ,22.21436,666.4297, 480.831, 173.212
sgpcmbeC1.c1,2000,0215:30:00,29 , 62.7174,521.4432,351.7441,128.0059
sgpcmbeC1.c1,2000,0216:30:00,29 ,31.68032,337.8444,217.3004,86.76542
sgpcmbeC1.c1,2000,0217:30:00,29 ,6.543509, 138.188,69.70866,35.59974
sgpcmbeC1.c1,2000,0218:30:00,29 ,0.143697,14.06247,2.512697, 3.22977
sgpcmbeC1.c1,2000,0219:30:00,29 ,       0, 0.02027,0.000699,0.003764
sgpcmbeC1.c1,2000,0220:30:00,28 ,       0,0.025267,0.000963,0.004769
sgpcmbeC1.c1,2000,0221:30:00,28 ,       0,0.108786,0.005054,0.020929
sgpcmbeC1.c1,2000,0222:30:00,28 ,       0,0.115015,0.009586,0.027236
sgpcmbeC1.c1,2000,0223:30:00,26 ,       0,0.131872,0.006392,0.025836