datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,11 0:30:00,24 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,11 1:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,11 2:30:00,24 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,11 3:30:00,24 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,11 4:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,11 5:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,11 6:30:00,30 ,       0,1.717531,0.273795,0.527078
sgpcmbeC1.c1,2007,11 7:30:00,30 , 0.43167, 44.0377,14.39275, 8.22109
sgpcmbeC1.c1,2007,11 8:30:00,28 ,3.890974,27.67499,10.39977,6.822279
sgpcmbeC1.c1,2007,11 9:30:00,28 , 2.41153,74.26967,15.46754, 18.0421
sgpcmbeC1.c1,2007,1110:30:00,29 ,1.197781,60.70425,18.04919,19.84355
sgpcmbeC1.c1,2007,1111:30:00,29 ,0.368472,60.91027,15.79432,18.31727
sgpcmbeC1.c1,2007,1112:30:00,29 ,0.395067,72.22969,15.73235,21.53588
sgpcmbeC1.c1,2007,1113:30:00,29 ,0.862722,49.79135,14.82454, 17.0366
sgpcmbeC1.c1,2007,1114:30:00,29 ,1.088426,49.48357, 13.5868,14.74886
sgpcmbeC1.c1,2007,1115:30:00,29 , 3.27405,43.91587,13.63728,11.38833
sgpcmbeC1.c1,2007,1116:30:00,30 ,5.583165,36.88785,14.57492,8.374042
sgpcmbeC1.c1,2007,1117:30:00,30 ,       0,18.38993,6.396798,3.478438
sgpcmbeC1.c1,2007,1118:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,1119:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,1120:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,1121:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,1122:30:00,24 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,1123:30:00,27 ,       0,       0,       0,       0