datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,11 0:30:00,28 ,       0, 1.41247,0.068079,0.279489
sgpcmbeC1.c1,2002,11 1:30:00,29 ,       0,1.560062,0.053795,0.289696
sgpcmbeC1.c1,2002,11 2:30:00,28 ,       0,1.204351,0.043013,0.227601
sgpcmbeC1.c1,2002,11 3:30:00,27 ,       0,0.468742,0.017361,0.090209
sgpcmbeC1.c1,2002,11 4:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,11 5:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,11 6:30:00,30 ,       0,1.619073,0.159838,0.402904
sgpcmbeC1.c1,2002,11 7:30:00,30 ,4.417124,47.93499,28.21724, 11.5378
sgpcmbeC1.c1,2002,11 8:30:00,30 ,6.023534,104.1552,48.39442,22.30336
sgpcmbeC1.c1,2002,11 9:30:00,30 ,7.441597, 109.571,51.27369,23.20676
sgpcmbeC1.c1,2002,1110:30:00,30 ,12.00964,184.0799,57.71368,44.94673
sgpcmbeC1.c1,2002,1111:30:00,30 ,12.25735, 106.741,37.83904,31.32195
sgpcmbeC1.c1,2002,1112:30:00,30 ,4.050889, 157.863,38.89496,47.06655
sgpcmbeC1.c1,2002,1113:30:00,30 ,10.16595, 149.569,47.43963,39.74156
sgpcmbeC1.c1,2002,1114:30:00,30 ,11.03958,162.7138,44.07697,27.04081
sgpcmbeC1.c1,2002,1115:30:00,30 ,3.422525,120.1098,50.11263,22.69146
sgpcmbeC1.c1,2002,1116:30:00,30 ,8.117949,65.20102,45.84152,14.06331
sgpcmbeC1.c1,2002,1117:30:00,30 ,1.650803,19.18197,8.590222,4.960491
sgpcmbeC1.c1,2002,1118:30:00,30 ,       0,1.538252, 0.07421,0.303679
sgpcmbeC1.c1,2002,1119:30:00,29 ,       0,1.655349,0.057081,0.307391
sgpcmbeC1.c1,2002,1120:30:00,29 ,       0,0.763201,0.026317,0.141723
sgpcmbeC1.c1,2002,1121:30:00,29 ,       0,1.255177,0.102962,0.315602
sgpcmbeC1.c1,2002,1122:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,1123:30:00,28 ,       0,1.741533, 0.08594,0.347908