datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,08 0:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,08 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,08 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,08 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,08 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,08 5:30:00,31 ,       0,1.827782,0.330818,0.444673
sgpcmbeC1.c1,2007,08 6:30:00,31 ,0.454382,30.14143,17.73723,9.348781
sgpcmbeC1.c1,2007,08 7:30:00,31 , 4.29076,85.38931,58.17928,22.98634
sgpcmbeC1.c1,2007,08 8:30:00,31 ,18.31805,134.9701,100.1777,30.57769
sgpcmbeC1.c1,2007,08 9:30:00,31 ,47.49192, 176.039,129.9258,36.20029
sgpcmbeC1.c1,2007,0810:30:00,31 ,72.81163, 208.102,154.6144, 40.6553
sgpcmbeC1.c1,2007,0811:30:00,31 ,36.54504,223.3823, 171.412,48.72697
sgpcmbeC1.c1,2007,0812:30:00,31 ,15.44184, 232.009,171.2958,50.70633
sgpcmbeC1.c1,2007,0813:30:00,31 ,41.75586,227.1113,166.9455, 49.1405
sgpcmbeC1.c1,2007,0814:30:00,31 ,11.17959, 210.233,157.3551,48.83166
sgpcmbeC1.c1,2007,0815:30:00,31 , 11.7436,178.2192,131.6826,38.96271
sgpcmbeC1.c1,2007,0816:30:00,31 ,10.66497,137.5722,96.44794,33.63866
sgpcmbeC1.c1,2007,0817:30:00,31 ,10.09169,89.05862,62.80697,  19.652
sgpcmbeC1.c1,2007,0818:30:00,31 ,4.778823, 36.7393,21.68387,10.01314
sgpcmbeC1.c1,2007,0819:30:00,31 ,       0,2.677292,0.787829,0.848055
sgpcmbeC1.c1,2007,0820:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,0821:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,0822:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,0823:30:00,31 ,       0,       0,       0,       0