datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,06 0:30:00,30 ,       0,0.253455,0.008449,0.046274
sgpcmbeC1.c1,2003,06 1:30:00,30 ,       0,0.177544,0.010192,0.039325
sgpcmbeC1.c1,2003,06 2:30:00,30 ,       0,0.031154,0.001038,0.005688
sgpcmbeC1.c1,2003,06 3:30:00,30 ,       0,0.128725,0.008148,0.031054
sgpcmbeC1.c1,2003,06 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,06 5:30:00,30 ,0.282641,12.73459,5.834911,3.632981
sgpcmbeC1.c1,2003,06 6:30:00,30 ,1.409666,23.35119,10.97722,5.979279
sgpcmbeC1.c1,2003,06 7:30:00,30 ,1.262373,40.77009,15.67914,10.42483
sgpcmbeC1.c1,2003,06 8:30:00,30 ,2.658794,42.11691,17.52102,11.85847
sgpcmbeC1.c1,2003,06 9:30:00,30 ,4.911339,66.92289,18.73104,15.95157
sgpcmbeC1.c1,2003,0610:30:00,30 ,3.155267,70.90682,27.11988, 20.3036
sgpcmbeC1.c1,2003,0611:30:00,30 ,1.864317,60.67023,25.78498,18.87718
sgpcmbeC1.c1,2003,0612:30:00,30 ,0.626466,60.54564,24.55225,20.25076
sgpcmbeC1.c1,2003,0613:30:00,30 ,1.521386,60.92042,27.45817,20.93629
sgpcmbeC1.c1,2003,0614:30:00,30 ,3.169062,58.78539,28.20247,18.70938
sgpcmbeC1.c1,2003,0615:30:00,30 ,5.870084,62.19362,27.07014,17.96988
sgpcmbeC1.c1,2003,0616:30:00,30 ,3.002208,43.12345,18.41744,11.40753
sgpcmbeC1.c1,2003,0617:30:00,30 ,0.976057,43.35369,17.62242,9.580036
sgpcmbeC1.c1,2003,0618:30:00,30 ,0.057122,28.61535,11.54412,6.403404
sgpcmbeC1.c1,2003,0619:30:00,30 ,0.271627, 11.0246, 5.09211,2.914238
sgpcmbeC1.c1,2003,0620:30:00,30 ,       0,2.181829,0.072756, 0.39834
sgpcmbeC1.c1,2003,0621:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0622:30:00,30 ,       0,  0.2177,0.007297,0.039739
sgpcmbeC1.c1,2003,0623:30:00,30 ,       0,0.383517,   0.018,0.074708