datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,05 0:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,05 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,05 2:30:00,31 ,       0,1.603851,0.051737, 0.28806
sgpcmbeC1.c1,1998,05 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,05 4:30:00,31 ,       0, 1.56589,0.093537,0.363303
sgpcmbeC1.c1,1998,05 5:30:00,31 ,1.925586, 23.5723,12.06569,5.847895
sgpcmbeC1.c1,1998,05 6:30:00,31 ,5.293221,70.14552,43.87558,17.47743
sgpcmbeC1.c1,1998,05 7:30:00,31 ,12.49057,106.0457,55.83849,20.93574
sgpcmbeC1.c1,1998,05 8:30:00,31 ,22.11295,152.8105,74.26423,32.13279
sgpcmbeC1.c1,1998,05 9:30:00,31 ,30.29214,187.9821,75.46052,40.35859
sgpcmbeC1.c1,1998,0510:30:00,31 ,29.35801,246.8477,81.55284,58.61289
sgpcmbeC1.c1,1998,0511:30:00,31 ,8.576422,248.5165,80.41898,78.16253
sgpcmbeC1.c1,1998,0512:30:00,31 ,2.712046,318.7495,108.4205,101.9676
sgpcmbeC1.c1,1998,0513:30:00,31 ,16.47334,300.2673,123.1297, 93.2068
sgpcmbeC1.c1,1998,0514:30:00,31 ,30.15122,  297.59,123.7171,83.38433
sgpcmbeC1.c1,1998,0515:30:00,31 ,46.69051, 269.919,120.6971,70.52837
sgpcmbeC1.c1,1998,0516:30:00,31 ,43.25143,192.9888,86.34407,40.86755
sgpcmbeC1.c1,1998,0517:30:00,31 ,11.34722,117.2699,62.40112,21.03939
sgpcmbeC1.c1,1998,0518:30:00,31 ,4.931603,59.13155,41.46352,15.97247
sgpcmbeC1.c1,1998,0519:30:00,31 ,       0,23.50182,11.12561,4.900626
sgpcmbeC1.c1,1998,0520:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0521:30:00,31 ,       0,0.724588,0.023374, 0.13014
sgpcmbeC1.c1,1998,0522:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0523:30:00,31 ,       0,       0,       0,       0