datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,05 0:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,05 1:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,05 2:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,05 3:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,05 4:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,05 5:30:00,29 ,       0,22.86803,6.815552,6.321771
sgpcmbeC1.c1,2007,05 6:30:00,29 ,0.234382,90.82175,45.12174,29.17437
sgpcmbeC1.c1,2007,05 7:30:00,29 ,5.939443,194.4542,94.27837,53.83555
sgpcmbeC1.c1,2007,05 8:30:00,29 ,25.68946,303.1541,146.4968,76.88213
sgpcmbeC1.c1,2007,05 9:30:00,29 ,56.15612,365.2803,207.0121,98.19727
sgpcmbeC1.c1,2007,0510:30:00,29 ,44.61522,494.6673,295.9114, 130.646
sgpcmbeC1.c1,2007,0511:30:00,29 ,101.4617,563.8683,344.7956,135.0249
sgpcmbeC1.c1,2007,0512:30:00,29 ,76.63441,568.1256,349.8022, 131.818
sgpcmbeC1.c1,2007,0513:30:00,30 ,42.75916,507.9491,327.5058,118.6495
sgpcmbeC1.c1,2007,0514:30:00,30 ,90.92121,543.2937,280.7105,113.5209
sgpcmbeC1.c1,2007,0515:30:00,30 ,74.97818,399.3392,248.9499,86.31898
sgpcmbeC1.c1,2007,0516:30:00,30 ,42.75951, 321.234,205.1376,67.18877
sgpcmbeC1.c1,2007,0517:30:00,30 ,40.01558, 204.855,135.2483,41.36942
sgpcmbeC1.c1,2007,0518:30:00,30 ,14.67507,110.6242, 58.2785,24.46378
sgpcmbeC1.c1,2007,0519:30:00,30 ,       0,14.65949,6.022022,3.811494
sgpcmbeC1.c1,2007,0520:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,0521:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,0522:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,0523:30:00,26 ,       0,       0,       0,       0