datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,08 0:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,08 1:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,08 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,08 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,08 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,08 5:30:00,30 ,       0,0.953843, 0.18145,0.279241
sgpcmbeC1.c1,1999,08 6:30:00,30 , 0.00522,40.69231,19.99308,15.56919
sgpcmbeC1.c1,1999,08 7:30:00,30 ,0.000351,80.90554,39.21451,24.87678
sgpcmbeC1.c1,1999,08 8:30:00,29 ,0.302623, 154.468,55.73284,35.82353
sgpcmbeC1.c1,1999,08 9:30:00,30 ,0.716602,  204.75,71.20138,58.51723
sgpcmbeC1.c1,1999,0810:30:00,30 ,1.370944,284.9525,70.57926,68.41719
sgpcmbeC1.c1,1999,0811:30:00,30 ,13.21562, 288.959,84.91563,91.80315
sgpcmbeC1.c1,1999,0812:30:00,30 ,3.691208,281.4705,80.27867,93.80922
sgpcmbeC1.c1,1999,0813:30:00,30 ,10.75937,305.1783,97.43904,100.9481
sgpcmbeC1.c1,1999,0814:30:00,30 ,10.21867,262.2378, 83.4652, 83.4437
sgpcmbeC1.c1,1999,0815:30:00,30 , 3.57505,220.2938,84.58347,56.16817
sgpcmbeC1.c1,1999,0816:30:00,30 ,0.365325,125.2985,53.65059,20.77382
sgpcmbeC1.c1,1999,0817:30:00,30 ,       0,59.11689,47.93901,13.85479
sgpcmbeC1.c1,1999,0818:30:00,30 ,       0,45.82352,28.31817,12.73731
sgpcmbeC1.c1,1999,0819:30:00,29 ,       0,4.938314,1.275635,1.666333
sgpcmbeC1.c1,1999,0820:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0821:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0822:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0823:30:00,29 ,       0,       0,       0,       0