datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,08 0:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,08 1:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,08 2:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,08 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,08 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,08 5:30:00,31 ,       0,2.252353,0.239124,0.457657
sgpcmbeC1.c1,2006,08 6:30:00,31 ,0.024826,36.95817,16.32793, 14.6435
sgpcmbeC1.c1,2006,08 7:30:00,31 ,0.001877,111.0656,46.35542,29.92081
sgpcmbeC1.c1,2006,08 8:30:00,31 , 0.20935,125.0978, 52.8597,28.68914
sgpcmbeC1.c1,2006,08 9:30:00,31 ,2.775824,202.1628,66.16077,49.77863
sgpcmbeC1.c1,2006,0810:30:00,31 ,0.889761,249.7074,89.38527,78.79762
sgpcmbeC1.c1,2006,0811:30:00,31 ,1.447181,351.4567,92.03309,89.67106
sgpcmbeC1.c1,2006,0812:30:00,31 ,1.162748,353.6595,135.4866,110.5479
sgpcmbeC1.c1,2006,0813:30:00,31 ,0.439945,305.3358,160.0382,103.4024
sgpcmbeC1.c1,2006,0814:30:00,31 ,1.835714,272.7249, 150.101,83.56524
sgpcmbeC1.c1,2006,0815:30:00,31 ,0.032143,248.8829,135.1689, 72.2967
sgpcmbeC1.c1,2006,0816:30:00,31 ,       0,178.7238,91.13275,47.08126
sgpcmbeC1.c1,2006,0817:30:00,31 ,       0,109.8627,53.73858, 28.6907
sgpcmbeC1.c1,2006,0818:30:00,31 ,       0,43.74368,21.30255, 13.2569
sgpcmbeC1.c1,2006,0819:30:00,31 ,       0,6.839239,0.857545,1.765442
sgpcmbeC1.c1,2006,0820:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,0821:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,0822:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,0823:30:00,31 ,       0,       0,       0,       0