datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,03 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,03 1:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,03 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,03 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,03 4:30:00,31 ,       0,0.651492,0.041275,0.159797
sgpcmbeC1.c1,1998,03 5:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,03 6:30:00,31 ,       0,20.18115,4.538703,5.468815
sgpcmbeC1.c1,1998,03 7:30:00,31 ,2.356221, 169.283,67.70135,52.46725
sgpcmbeC1.c1,1998,03 8:30:00,31 , 10.5338,380.5861,189.0763,130.9134
sgpcmbeC1.c1,1998,03 9:30:00,31 ,19.92924,581.2444,322.9659,211.3474
sgpcmbeC1.c1,1998,0310:30:00,31 ,43.88388,740.6496,416.6751,255.6433
sgpcmbeC1.c1,1998,0311:30:00,31 ,73.21541, 841.756,498.8238,290.5017
sgpcmbeC1.c1,1998,0312:30:00,31 ,62.99767,881.1992,535.1077,320.2409
sgpcmbeC1.c1,1998,0313:30:00,31 ,48.81734,852.5063,510.9065,317.0147
sgpcmbeC1.c1,1998,0314:30:00,31 ,53.22516,761.7321,454.1741,290.5112
sgpcmbeC1.c1,1998,0315:30:00,30 ,41.88755, 622.849,362.6004,241.3714
sgpcmbeC1.c1,1998,0316:30:00,31 ,27.54518, 427.891,244.9792,158.4977
sgpcmbeC1.c1,1998,0317:30:00,31 ,13.81221, 219.042, 118.942,75.41547
sgpcmbeC1.c1,1998,0318:30:00,31 ,1.053542,48.12719,16.33079,13.44818
sgpcmbeC1.c1,1998,0319:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0320:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0321:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0322:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0323:30:00,29 ,       0,       0,       0,       0