datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,08 0:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,08 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,08 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,08 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,08 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,08 5:30:00,31 ,       0,0.852605,0.167091,0.253472
sgpcmbeC1.c1,2007,08 6:30:00,31 ,0.032171,37.13605,18.92806,12.91924
sgpcmbeC1.c1,2007,08 7:30:00,31 ,0.043932,98.42749,44.53178,24.89187
sgpcmbeC1.c1,2007,08 8:30:00,31 ,0.169687, 148.291,58.58254, 34.4162
sgpcmbeC1.c1,2007,08 9:30:00,31 ,0.442497,181.1491,64.65456,43.44544
sgpcmbeC1.c1,2007,0810:30:00,31 ,4.501667,225.0769,88.62421,72.18103
sgpcmbeC1.c1,2007,0811:30:00,31 ,0.419782,277.8638,94.55885,90.43869
sgpcmbeC1.c1,2007,0812:30:00,31 ,0.867968,337.6825,121.5903,113.7339
sgpcmbeC1.c1,2007,0813:30:00,31 ,5.599964,277.7253,116.0687,91.53382
sgpcmbeC1.c1,2007,0814:30:00,31 ,0.355467,218.4559,92.09581,71.00367
sgpcmbeC1.c1,2007,0815:30:00,31 ,1.781232,223.9848,93.70575,65.43803
sgpcmbeC1.c1,2007,0816:30:00,31 ,0.176859,172.5697,70.84623,43.74108
sgpcmbeC1.c1,2007,0817:30:00,31 , 0.11156,76.00944,47.66426,15.26709
sgpcmbeC1.c1,2007,0818:30:00,31 ,       0,40.62378,24.96704, 13.1151
sgpcmbeC1.c1,2007,0819:30:00,31 ,       0,5.086056,1.015965,1.420697
sgpcmbeC1.c1,2007,0820:30:00,26 ,       0,7.344829,0.282493,1.440439
sgpcmbeC1.c1,2007,0821:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,0822:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,0823:30:00,31 ,       0,       0,       0,       0