datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,11 0:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,11 1:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,11 2:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,11 3:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,11 4:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,11 5:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,11 6:30:00,30 ,       0,0.002033, 0.00009,0.000373
sgpcmbeC1.c1,2001,11 7:30:00,30 ,       0, 31.9309,9.640176,11.57633
sgpcmbeC1.c1,2001,11 8:30:00,30 ,       0,174.9791,70.04953,65.18792
sgpcmbeC1.c1,2001,11 9:30:00,30 ,       0,331.6883,153.0524,130.3607
sgpcmbeC1.c1,2001,1110:30:00,30 ,0.129929,453.4378, 209.154,181.8517
sgpcmbeC1.c1,2001,1111:30:00,30 ,0.184204,523.5046,256.8475,212.6559
sgpcmbeC1.c1,2001,1112:30:00,30 ,0.069267,540.3589,246.1493,212.9848
sgpcmbeC1.c1,2001,1113:30:00,30 ,0.048859,504.3569,208.8006,194.2445
sgpcmbeC1.c1,2001,1114:30:00,30 ,       0,407.9004,177.0444,155.1587
sgpcmbeC1.c1,2001,1115:30:00,30 ,0.009628,260.5226,103.9985,98.20767
sgpcmbeC1.c1,2001,1116:30:00,30 ,0.001197,92.55725,35.54594,34.63011
sgpcmbeC1.c1,2001,1117:30:00,30 ,       0,4.631704,0.994127,1.466654
sgpcmbeC1.c1,2001,1118:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,1119:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,1120:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,1121:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,1122:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,1123:30:00,27 ,       0,       0,       0,       0