datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,08 0:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,08 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,08 2:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,08 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,08 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,08 5:30:00,31 ,       0,5.438439,1.208679,1.407256
sgpcmbeC1.c1,2003,08 6:30:00,31 ,2.520332,81.44694,39.59106,16.84563
sgpcmbeC1.c1,2003,08 7:30:00,31 ,25.50413,168.7784,102.7593,32.24917
sgpcmbeC1.c1,2003,08 8:30:00,31 ,53.20972,290.5396,159.9129,60.42785
sgpcmbeC1.c1,2003,08 9:30:00,31 ,112.5213,334.9716,183.0084,64.44155
sgpcmbeC1.c1,2003,0810:30:00,31 ,101.5128,410.7286,216.8464,79.99473
sgpcmbeC1.c1,2003,0811:30:00,31 ,122.9108,440.4793,240.2447,88.79856
sgpcmbeC1.c1,2003,0812:30:00,31 ,128.2149,513.7702,260.8372,85.07459
sgpcmbeC1.c1,2003,0813:30:00,31 ,  127.42,463.5581,262.3848,86.46224
sgpcmbeC1.c1,2003,0814:30:00,31 , 86.6351,437.7708,241.8544,85.79891
sgpcmbeC1.c1,2003,0815:30:00,31 ,79.26723,307.0611,196.4683,58.55285
sgpcmbeC1.c1,2003,0816:30:00,31 ,15.54391, 332.333,165.2956,64.16866
sgpcmbeC1.c1,2003,0817:30:00,31 ,19.53341,169.1785,103.6388,36.87623
sgpcmbeC1.c1,2003,0818:30:00,31 ,4.423622, 109.059,46.61147,20.00099
sgpcmbeC1.c1,2003,0819:30:00,29 ,       0,9.016356,3.155909,2.653826
sgpcmbeC1.c1,2003,0820:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0821:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0822:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0823:30:00,31 ,       0,       0,       0,       0