datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,07 0:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,07 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,07 2:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,07 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,07 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,07 5:30:00,31 ,       0,12.12114,4.057371,3.754077
sgpcmbeC1.c1,2003,07 6:30:00,31 ,0.030819,50.21218,30.57623,13.35576
sgpcmbeC1.c1,2003,07 7:30:00,31 ,0.226804,120.6355,59.59913,21.92076
sgpcmbeC1.c1,2003,07 8:30:00,31 ,0.643702,165.2899,59.97111,38.56967
sgpcmbeC1.c1,2003,07 9:30:00,31 ,1.405755,215.6339,72.90269,53.66398
sgpcmbeC1.c1,2003,0710:30:00,31 ,20.67741,237.3527,72.42625,66.26693
sgpcmbeC1.c1,2003,0711:30:00,31 , 14.5333,293.1384,90.21369,103.6603
sgpcmbeC1.c1,2003,0712:30:00,31 ,3.176417,335.7469,90.11172,112.6831
sgpcmbeC1.c1,2003,0713:30:00,31 ,12.07032,319.7419,137.1794,124.4551
sgpcmbeC1.c1,2003,0714:30:00,31 ,15.61675,333.0115, 150.587,109.5376
sgpcmbeC1.c1,2003,0715:30:00,31 ,32.51778,235.5865,110.4691,71.65774
sgpcmbeC1.c1,2003,0716:30:00,31 ,3.529802,208.1259,83.07156,48.93243
sgpcmbeC1.c1,2003,0717:30:00,31 ,1.783691,113.2603,60.18875,22.82228
sgpcmbeC1.c1,2003,0718:30:00,31 ,2.787589,69.34508,40.32635,13.10135
sgpcmbeC1.c1,2003,0719:30:00,31 ,       0,15.24792, 7.61938,4.871969
sgpcmbeC1.c1,2003,0720:30:00,31 ,       0,0.070696,0.002281,0.012697
sgpcmbeC1.c1,2003,0721:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0722:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0723:30:00,31 ,       0,       0,       0,       0