datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2000,07 0:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,07 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,07 2:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,07 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,07 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,07 5:30:00,31 ,       0,6.212511,1.958205,2.292093
sgpcmbeC1.c1,2000,07 6:30:00,31 ,0.008215, 108.957, 43.2035, 38.8674
sgpcmbeC1.c1,2000,07 7:30:00,31 ,       0,274.9847,128.8351,104.6584
sgpcmbeC1.c1,2000,07 8:30:00,31 ,       0,466.2043,262.8626,180.7139
sgpcmbeC1.c1,2000,07 9:30:00,31 ,0.198822,636.6902,384.2839,226.3213
sgpcmbeC1.c1,2000,0710:30:00,31 ,0.900154,772.0917,517.7621,256.0946
sgpcmbeC1.c1,2000,0711:30:00,31 ,12.44064,869.8737,618.8434,247.8934
sgpcmbeC1.c1,2000,0712:30:00,31 ,61.51303,904.5645,676.3204, 211.757
sgpcmbeC1.c1,2000,0713:30:00,31 ,64.98135,871.2211,622.0959,232.8554
sgpcmbeC1.c1,2000,0714:30:00,31 ,1.792984,783.6571,570.4812,230.4715
sgpcmbeC1.c1,2000,0715:30:00,31 ,       0,638.6863,477.4269,173.5783
sgpcmbeC1.c1,2000,0716:30:00,31 ,0.022537,477.3028,352.1511,134.5792
sgpcmbeC1.c1,2000,0717:30:00,31 ,1.886421,309.9814,224.7283,78.40685
sgpcmbeC1.c1,2000,0718:30:00,31 ,2.491516,128.9894, 86.6487,35.82689
sgpcmbeC1.c1,2000,0719:30:00,31 ,       0,15.26991,7.045812,  5.2302
sgpcmbeC1.c1,2000,0720:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0721:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0722:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0723:30:00,31 ,       0,       0,       0,       0