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 ,       0,1.434036,0.136011,0.280159
sgpcmbeC1.c1,2003,08 6:30:00,31 ,0.022046,36.88375,17.86805,12.93794
sgpcmbeC1.c1,2003,08 7:30:00,31 , 0.05381,92.04855,41.18186,23.54029
sgpcmbeC1.c1,2003,08 8:30:00,31 ,0.250914,162.1929,61.47132,38.22926
sgpcmbeC1.c1,2003,08 9:30:00,31 , 0.47591,195.5607,62.82488,46.59257
sgpcmbeC1.c1,2003,0810:30:00,31 ,0.233836,274.2283,85.00114,72.56873
sgpcmbeC1.c1,2003,0811:30:00,31 ,1.287376,298.5822,92.76757,85.23915
sgpcmbeC1.c1,2003,0812:30:00,31 ,1.213437,323.4062, 128.344,109.8061
sgpcmbeC1.c1,2003,0813:30:00,31 ,0.583989,299.2447,  140.25,90.10841
sgpcmbeC1.c1,2003,0814:30:00,31 ,0.190545,257.7056,124.3036,83.32634
sgpcmbeC1.c1,2003,0815:30:00,31 ,0.065612,229.8672,127.3436,63.55556
sgpcmbeC1.c1,2003,0816:30:00,31 ,1.197712,196.6351,79.95113,44.55988
sgpcmbeC1.c1,2003,0817:30:00,31 ,0.004068,99.65607,47.07252,25.90248
sgpcmbeC1.c1,2003,0818:30:00,31 ,       0,57.78947,27.22773,15.53343
sgpcmbeC1.c1,2003,0819:30:00,29 ,       0,6.283437,1.200942, 1.58532
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