datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,05 0:30:00,31 ,       0,0.125014, 0.00641,0.025682
sgpcmbeC1.c1,2004,05 1:30:00,31 ,       0,0.000868,0.000028,0.000156
sgpcmbeC1.c1,2004,05 2:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,05 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,05 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,05 5:30:00,31 ,       0,11.79189,4.177849, 3.02905
sgpcmbeC1.c1,2004,05 6:30:00,31 ,0.341513,22.47401,11.43495,5.353475
sgpcmbeC1.c1,2004,05 7:30:00,31 ,1.633166,28.93017,12.73908,6.522408
sgpcmbeC1.c1,2004,05 8:30:00,31 ,4.053532,48.25425,15.90425,10.23282
sgpcmbeC1.c1,2004,05 9:30:00,31 , 3.07826,39.03987,13.26419,8.788701
sgpcmbeC1.c1,2004,0510:30:00,31 ,3.093997,49.59752,19.37135,16.44796
sgpcmbeC1.c1,2004,0511:30:00,31 ,0.557601,51.61002,20.91172,19.52222
sgpcmbeC1.c1,2004,0512:30:00,31 ,0.598089,53.23385,19.72021,20.70028
sgpcmbeC1.c1,2004,0513:30:00,31 ,1.293902, 57.5016,18.11102,18.65442
sgpcmbeC1.c1,2004,0514:30:00,31 ,0.886593,51.16455,17.73895,18.00111
sgpcmbeC1.c1,2004,0515:30:00,31 ,1.201969,46.33766, 17.1673,15.51961
sgpcmbeC1.c1,2004,0516:30:00,31 ,2.157271,42.50059, 18.4764,10.92818
sgpcmbeC1.c1,2004,0517:30:00,31 ,2.940078,48.86075,16.58374,8.698518
sgpcmbeC1.c1,2004,0518:30:00,31 ,1.316078, 22.0257,13.91413,4.229601
sgpcmbeC1.c1,2004,0519:30:00,31 , 0.17679,8.365848,3.488532,2.076772
sgpcmbeC1.c1,2004,0520:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,0521:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,0522:30:00,31 ,       0,0.325883,0.016514,0.066423
sgpcmbeC1.c1,2004,0523:30:00,31 ,       0,0.365622,0.017839,0.072491