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 ,       0,1.442882,0.046545,0.259149
sgpcmbeC1.c1,1998,05 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,05 4:30:00,31 ,       0,1.546753,0.091452,0.355566
sgpcmbeC1.c1,1998,05 5:30:00,31 ,1.924795, 22.1298,10.31029,4.730511
sgpcmbeC1.c1,1998,05 6:30:00,31 ,5.254347,61.39647,21.72954,12.20598
sgpcmbeC1.c1,1998,05 7:30:00,31 ,3.996377,93.13397,23.56735,19.01335
sgpcmbeC1.c1,1998,05 8:30:00,30 ,0.997993,67.24552,27.18904,19.27462
sgpcmbeC1.c1,1998,05 9:30:00,30 ,0.666972,148.2495,30.45231,34.54698
sgpcmbeC1.c1,1998,0510:30:00,31 ,1.043586,203.2764,41.04368,47.61938
sgpcmbeC1.c1,1998,0511:30:00,31 ,0.892402,149.6179,35.24411,35.63888
sgpcmbeC1.c1,1998,0512:30:00,30 ,1.128069,141.2554,39.52647,39.20021
sgpcmbeC1.c1,1998,0513:30:00,31 ,0.847288,279.6772,47.48413,51.96016
sgpcmbeC1.c1,1998,0514:30:00,31 ,0.709944, 156.422, 40.1045,35.84026
sgpcmbeC1.c1,1998,0515:30:00,31 ,1.151232,236.9309, 47.2773,53.15456
sgpcmbeC1.c1,1998,0516:30:00,31 ,2.250912, 138.535,32.73624,30.08287
sgpcmbeC1.c1,1998,0517:30:00,31 ,3.190667,79.76147,23.91129,18.71739
sgpcmbeC1.c1,1998,0518:30:00,31 ,4.931603,49.97288,18.23906,8.682221
sgpcmbeC1.c1,1998,0519:30:00,31 ,       0,20.78447,9.562155,3.988703
sgpcmbeC1.c1,1998,0520:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0521:30:00,31 ,       0,0.614467,0.019822,0.110361
sgpcmbeC1.c1,1998,0522:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0523:30:00,31 ,       0,       0,       0,       0