datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,04 0:30:00,28 ,0.801507,4.211957,2.171847, 0.89792
sgpcmbeC1.c1,2002,04 1:30:00,28 ,0.838443,3.971003,2.197067,0.902964
sgpcmbeC1.c1,2002,04 2:30:00,28 ,0.945343,4.489363,2.241491,0.936602
sgpcmbeC1.c1,2002,04 3:30:00,28 ,0.989423,3.835666, 2.20898,0.883084
sgpcmbeC1.c1,2002,04 4:30:00,27 ,0.959952,3.709071,2.155489,0.846378
sgpcmbeC1.c1,2002,04 5:30:00,27 ,0.917131,3.182799,2.092634, 0.74912
sgpcmbeC1.c1,2002,04 6:30:00,25 ,0.878345,3.129766,2.004107,0.758114
sgpcmbeC1.c1,2002,04 7:30:00,27 ,0.844975, 3.99249,2.162245,0.925623
sgpcmbeC1.c1,2002,04 8:30:00,27 ,0.784371,3.758659,2.123178,0.861611
sgpcmbeC1.c1,2002,04 9:30:00,27 ,0.745755,4.262686,2.140325,0.927009
sgpcmbeC1.c1,2002,0410:30:00,26 ,0.749737,3.911543,2.063023,0.855663
sgpcmbeC1.c1,2002,0411:30:00,27 ,0.774221,4.000215,2.091079,0.865982
sgpcmbeC1.c1,2002,0412:30:00,27 ,0.799336,3.933395,2.069673,0.837157
sgpcmbeC1.c1,2002,0413:30:00,26 ,0.825864,4.086127,2.101957,0.827507
sgpcmbeC1.c1,2002,0414:30:00,26 ,0.838731, 4.15445,2.107081,0.834533
sgpcmbeC1.c1,2002,0415:30:00,26 ,0.839041,4.307727,2.092988,0.817938
sgpcmbeC1.c1,2002,0416:30:00,26 ,0.846036,4.377542, 2.13228,0.834534
sgpcmbeC1.c1,2002,0417:30:00,26 ,0.882816,4.212197,2.153572,0.873053
sgpcmbeC1.c1,2002,0418:00:00,17 ,1.053217,2.569702,1.894416,0.556866
sgpcmbeC1.c1,2002,0418:30:00,28 ,0.940053,4.185296,2.155973, 0.87701
sgpcmbeC1.c1,2002,0419:30:00,28 , 0.86185,3.990041,2.195999,0.879135
sgpcmbeC1.c1,2002,0420:30:00,27 , 0.85016, 3.90379,2.126715, 0.78359
sgpcmbeC1.c1,2002,0421:30:00,27 ,0.828572,4.230228,2.155835,  0.8226
sgpcmbeC1.c1,2002,0422:30:00,27 , 0.78401,5.264771,2.206751,0.971329
sgpcmbeC1.c1,2002,0423:30:00,28 ,0.782386,  4.4651,2.230579,0.889948