datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,11 0:30:00,30 ,       0,1.296388,0.115823,0.335013
sgpcmbeC1.c1,2004,11 1:30:00,30 ,       0,0.961435,0.068851,0.231969
sgpcmbeC1.c1,2004,11 2:30:00,30 ,       0,0.830118,0.046677,0.171644
sgpcmbeC1.c1,2004,11 3:30:00,30 ,       0,1.621782,0.118348,0.396111
sgpcmbeC1.c1,2004,11 4:30:00,30 ,       0, 0.37349,0.017037,0.071853
sgpcmbeC1.c1,2004,11 5:30:00,30 ,       0,0.577102,0.022421,0.106203
sgpcmbeC1.c1,2004,11 6:30:00,30 ,       0,2.455108,0.249854,0.585137
sgpcmbeC1.c1,2004,11 7:30:00,30 ,2.551445,46.47227,15.56863,11.59071
sgpcmbeC1.c1,2004,11 8:30:00,30 ,11.73501,124.6768,57.04647,34.12896
sgpcmbeC1.c1,2004,11 9:30:00,30 ,17.24855,198.3198,95.70153,54.17109
sgpcmbeC1.c1,2004,1110:30:00,30 ,12.80741,270.7719,134.6487,82.66799
sgpcmbeC1.c1,2004,1111:30:00,30 , 40.1108,341.6176,156.8654,92.76512
sgpcmbeC1.c1,2004,1112:30:00,30 ,49.45241,323.7653,152.9066,80.78356
sgpcmbeC1.c1,2004,1113:30:00,30 ,37.91909,366.6994,147.5238,89.70674
sgpcmbeC1.c1,2004,1114:30:00,30 ,37.01148,225.9193,114.3074,58.37425
sgpcmbeC1.c1,2004,1115:30:00,30 ,17.68229,172.3174,77.06131,35.02483
sgpcmbeC1.c1,2004,1116:30:00,30 ,8.601508, 80.8611,35.93209,17.47523
sgpcmbeC1.c1,2004,1117:30:00,30 ,       0,17.20325,4.445006, 4.38308
sgpcmbeC1.c1,2004,1118:30:00,30 ,       0, 1.41586,0.140905,0.340555
sgpcmbeC1.c1,2004,1119:30:00,30 ,       0,0.471592,0.038145,0.113308
sgpcmbeC1.c1,2004,1120:30:00,30 ,       0,2.641625,0.197529,0.537268
sgpcmbeC1.c1,2004,1121:30:00,30 ,       0,0.871293, 0.07774,0.231395
sgpcmbeC1.c1,2004,1122:30:00,30 ,       0,0.352657,0.026048,0.076653
sgpcmbeC1.c1,2004,1123:30:00,30 ,       0,1.167025,0.158376, 0.32833