datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,08 0:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,08 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,08 2:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,08 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,08 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,08 5:30:00,31 ,       0,1.004428,0.223713,0.293174
sgpcmbeC1.c1,2002,08 6:30:00,31 ,       0,28.05742,15.31012, 8.08268
sgpcmbeC1.c1,2002,08 7:30:00,31 ,       0,78.99439,52.46528,23.56265
sgpcmbeC1.c1,2002,08 8:30:00,31 ,0.162428,117.3541, 86.7055,36.30091
sgpcmbeC1.c1,2002,08 9:30:00,31 ,1.435039,151.0301,111.9161,45.93231
sgpcmbeC1.c1,2002,0810:30:00,31 ,5.317906,175.6956,139.7774,47.05817
sgpcmbeC1.c1,2002,0811:30:00,31 ,9.857429,202.2615,153.2981,47.90358
sgpcmbeC1.c1,2002,0812:30:00,31 , 20.1128,196.9958,150.9596, 49.0294
sgpcmbeC1.c1,2002,0813:30:00,31 ,22.94627, 189.884,159.5073,35.32823
sgpcmbeC1.c1,2002,0814:30:00,31 ,6.159434,179.9527,144.1133, 37.5002
sgpcmbeC1.c1,2002,0815:30:00,31 , 2.50762,156.2669,124.3289,36.00681
sgpcmbeC1.c1,2002,0816:30:00,31 ,7.349538,126.6756,93.22179,28.07892
sgpcmbeC1.c1,2002,0817:30:00,31 , 6.83048,81.34573,57.44867, 20.6289
sgpcmbeC1.c1,2002,0818:30:00,31 , 7.53584,36.24929,21.12926,8.862915
sgpcmbeC1.c1,2002,0819:30:00,31 ,       0,4.393301,1.046924,1.352119
sgpcmbeC1.c1,2002,0820:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0821:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0822:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0823:30:00,31 ,       0,       0,       0,       0