datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,07 0:30:00,31 ,0.404861,2.501872,1.149874,  0.5349
sgpcmbeC1.c1,1999,07 1:30:00,31 ,0.275337,2.651634,1.174323,0.566094
sgpcmbeC1.c1,1999,07 2:30:00,31 ,0.332604,  2.9129,1.210704,0.672173
sgpcmbeC1.c1,1999,07 3:30:00,31 , 0.40117,10.88662,1.365122,1.875602
sgpcmbeC1.c1,1999,07 4:30:00,31 ,0.341033,3.212244,1.203226,0.683947
sgpcmbeC1.c1,1999,07 5:30:00,31 ,0.410325,2.975734,1.179042,0.621839
sgpcmbeC1.c1,1999,07 6:30:00,31 , 0.35968,6.900232,4.004788,1.589089
sgpcmbeC1.c1,1999,07 7:30:00,31 ,1.289012,7.362128,4.274662,1.567334
sgpcmbeC1.c1,1999,07 8:30:00,31 ,0.881176,10.69357,4.503054,1.962743
sgpcmbeC1.c1,1999,07 9:30:00,31 ,2.023913,8.659526,4.201667,1.295952
sgpcmbeC1.c1,1999,0710:30:00,31 ,1.683744,10.21136,3.577169,1.623583
sgpcmbeC1.c1,1999,0711:30:00,31 ,1.684139, 8.54457, 3.26355,1.652963
sgpcmbeC1.c1,1999,0712:30:00,31 ,1.472249,12.14829, 3.32159,2.248236
sgpcmbeC1.c1,1999,0713:30:00,31 ,1.111196,10.45882,3.701733,2.465564
sgpcmbeC1.c1,1999,0714:30:00,31 ,0.928797,10.84226,3.846965,2.635095
sgpcmbeC1.c1,1999,0715:30:00,31 ,0.888001, 8.77289,3.031029,1.814747
sgpcmbeC1.c1,1999,0716:30:00,31 ,1.090341,7.013841,2.927931,1.375454
sgpcmbeC1.c1,1999,0717:30:00,31 ,1.629293,6.313717,2.652456,0.993937
sgpcmbeC1.c1,1999,0718:30:00,31 ,1.982836, 6.86608,3.287131,1.137274
sgpcmbeC1.c1,1999,0719:30:00,31 ,1.955472,21.33716, 4.88512,3.191232
sgpcmbeC1.c1,1999,0720:30:00,31 ,0.996199, 5.12823,2.491487,0.966657
sgpcmbeC1.c1,1999,0721:30:00,31 , 0.41705,3.367933,1.541268,0.897908
sgpcmbeC1.c1,1999,0722:30:00,31 ,0.631945,2.835442,1.329187,0.528747
sgpcmbeC1.c1,1999,0723:30:00,31 ,0.396549,3.278462, 1.22214,0.682739