datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,12 0:30:00,30 ,       0,4.265278,1.223172,1.538413
sgpcmbeC1.c1,2005,12 1:30:00,30 ,       0,4.455798,1.317282,1.698019
sgpcmbeC1.c1,2005,12 2:30:00,30 ,       0,4.482722,1.286162,1.606142
sgpcmbeC1.c1,2005,12 3:30:00,29 ,       0,4.184123,0.984196,1.332409
sgpcmbeC1.c1,2005,12 4:30:00,31 ,       0,3.753468,0.692836,1.182834
sgpcmbeC1.c1,2005,12 5:30:00,31 ,       0,3.746624,0.656002,1.159739
sgpcmbeC1.c1,2005,12 6:30:00,31 ,       0,3.879224,0.656386,1.213633
sgpcmbeC1.c1,2005,12 7:30:00,31 ,       0, 18.1996,6.172308,4.788828
sgpcmbeC1.c1,2005,12 8:30:00,31 ,6.517126,157.0577, 90.3485,41.01188
sgpcmbeC1.c1,2005,12 9:30:00,31 ,54.83908, 324.095,216.5218,84.40698
sgpcmbeC1.c1,2005,1210:30:00,31 ,103.0148,456.2963,319.6532,110.1324
sgpcmbeC1.c1,2005,1211:30:00,30 ,91.70068,535.1251,388.3348,146.1121
sgpcmbeC1.c1,2005,1212:30:00,31 ,88.19639,559.5871,414.7687,157.4214
sgpcmbeC1.c1,2005,1213:30:00,31 ,74.75672,518.1127,391.0732,146.1942
sgpcmbeC1.c1,2005,1214:30:00,31 ,50.17993,424.2538,299.5647,141.6717
sgpcmbeC1.c1,2005,1215:30:00,31 ,18.03208,288.4267,188.4637, 92.9466
sgpcmbeC1.c1,2005,1216:30:00,31 ,6.350604,126.3209, 68.6421,35.61622
sgpcmbeC1.c1,2005,1217:30:00,31 ,       0,9.317221,3.603677, 2.69652
sgpcmbeC1.c1,2005,1218:30:00,31 ,       0,4.799252,1.477127,1.766012
sgpcmbeC1.c1,2005,1219:30:00,30 ,       0,4.843882,1.303786,1.691538
sgpcmbeC1.c1,2005,1220:30:00,29 ,       0,4.847769,1.383919, 1.67029
sgpcmbeC1.c1,2005,1221:30:00,30 ,       0,4.669286,1.330374,1.659588
sgpcmbeC1.c1,2005,1222:30:00,28 ,       0,4.576072,1.330649,1.546636
sgpcmbeC1.c1,2005,1223:30:00,30 ,       0,4.247591,1.331842,1.582717