datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,12 0:30:00,29 ,       0,147.3837,24.25219,44.62269
sgpcmbeC1.c1,2007,12 1:30:00,29 ,       0,312.7359,27.01604,61.68364
sgpcmbeC1.c1,2007,12 2:30:00,28 ,       0,332.8068,24.46501,64.36668
sgpcmbeC1.c1,2007,12 3:30:00,28 ,       0,251.9687,22.55242,50.06059
sgpcmbeC1.c1,2007,12 4:30:00,28 ,       0,194.8837,30.81799, 54.8609
sgpcmbeC1.c1,2007,12 5:30:00,28 ,       0,250.2048,32.88358,59.35906
sgpcmbeC1.c1,2007,12 6:30:00,28 ,       0,186.5514,34.60739, 56.7854
sgpcmbeC1.c1,2007,12 7:30:00,29 ,       0,362.4753,53.67841,98.70907
sgpcmbeC1.c1,2007,12 8:30:00,29 ,       0, 331.602,43.96688,79.41597
sgpcmbeC1.c1,2007,12 9:30:00,30 ,       0,383.8079,51.26432,98.53649
sgpcmbeC1.c1,2007,1210:30:00,30 ,       0,227.7799,32.78848,59.87028
sgpcmbeC1.c1,2007,1211:30:00,30 ,       0,377.3634,59.78259,114.8754
sgpcmbeC1.c1,2007,1212:30:00,30 ,       0,338.8807,43.21734,83.14498
sgpcmbeC1.c1,2007,1213:30:00,29 ,       0,288.2047, 35.3195, 68.8864
sgpcmbeC1.c1,2007,1214:30:00,30 ,       0, 200.267,33.27527, 58.1712
sgpcmbeC1.c1,2007,1215:30:00,30 ,       0, 213.726,27.98588,53.90895
sgpcmbeC1.c1,2007,1216:30:00,29 ,       0,150.0526,  26.106,42.88465
sgpcmbeC1.c1,2007,1217:30:00,29 ,       0,151.1759,22.98351,38.90545
sgpcmbeC1.c1,2007,1218:30:00,28 ,       0,232.0254,27.83493,57.92997
sgpcmbeC1.c1,2007,1219:30:00,28 ,       0,210.7087,24.49994,50.21526
sgpcmbeC1.c1,2007,1220:30:00,28 ,       0,287.0212,28.96168,66.35626
sgpcmbeC1.c1,2007,1221:30:00,28 ,       0,284.8284,26.93105,65.39334
sgpcmbeC1.c1,2007,1222:30:00,28 ,       0,304.6048,29.55519,66.12154
sgpcmbeC1.c1,2007,1223:30:00,28 ,       0,122.4393,20.77946,34.81658