datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,04 0:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,04 1:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,04 2:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,04 3:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,04 4:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,04 5:30:00,30 ,       0,0.661262, 0.04762,0.125422
sgpcmbeC1.c1,2003,04 6:30:00,30 ,       0,62.29926,21.80917,18.53336
sgpcmbeC1.c1,2003,04 7:30:00,30 , 0.04649,247.0321,126.0103,85.95203
sgpcmbeC1.c1,2003,04 8:30:00,30 ,0.222298,455.0313,252.4225, 169.805
sgpcmbeC1.c1,2003,04 9:30:00,30 ,0.260033,643.2109,377.3515,239.1526
sgpcmbeC1.c1,2003,0410:30:00,30 ,0.672089,790.7614,463.6337,298.3841
sgpcmbeC1.c1,2003,0411:30:00,30 ,0.294235,881.9059,525.2834,319.1501
sgpcmbeC1.c1,2003,0412:30:00,30 ,1.062851,910.3766,497.0109,357.4559
sgpcmbeC1.c1,2003,0413:30:00,30 , 1.51635,878.2869,506.1224,323.3054
sgpcmbeC1.c1,2003,0414:30:00,30 ,0.078617,779.0283,413.6441,294.5191
sgpcmbeC1.c1,2003,0415:30:00,30 ,0.085106,631.7408,361.3164,217.7387
sgpcmbeC1.c1,2003,0416:30:00,30 ,0.288109,441.0841,271.9475,142.3124
sgpcmbeC1.c1,2003,0417:30:00,30 , 0.03495,233.6794,135.1147,69.91288
sgpcmbeC1.c1,2003,0418:30:00,30 ,       0,55.76189,22.77315,16.20111
sgpcmbeC1.c1,2003,0419:30:00,30 ,       0,3.662571,0.364675,0.716788
sgpcmbeC1.c1,2003,0420:30:00,30 ,       0,1.988676,0.086931,0.368543
sgpcmbeC1.c1,2003,0421:30:00,30 ,       0,1.601291, 0.11321,0.357236
sgpcmbeC1.c1,2003,0422:30:00,30 ,       0, 0.26299,0.011231,0.049427
sgpcmbeC1.c1,2003,0423:30:00,29 ,       0,       0,       0,       0