datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,09 0:30:00,23 ,       0,90.44843, 10.6785,21.83095
sgpcmbeC1.c1,2004,09 1:30:00,23 ,       0,675.5468,42.41898, 141.456
sgpcmbeC1.c1,2004,09 2:30:00,22 ,       0, 83.6466,15.00112,27.24716
sgpcmbeC1.c1,2004,09 3:30:00,20 ,       0,130.4393,16.21701,32.88899
sgpcmbeC1.c1,2004,09 4:30:00,22 ,       0,98.81091,14.12312,25.51339
sgpcmbeC1.c1,2004,09 5:30:00,22 ,       0, 185.192,17.44436, 40.5875
sgpcmbeC1.c1,2004,09 6:30:00,21 ,       0,149.2947,23.29717,46.01608
sgpcmbeC1.c1,2004,09 7:30:00,22 ,       0,1697.438,94.14485,364.1506
sgpcmbeC1.c1,2004,09 8:30:00,24 ,       0,978.3969,49.76885,200.7524
sgpcmbeC1.c1,2004,09 9:30:00,23 ,       0,104.4852,12.67898,27.84457
sgpcmbeC1.c1,2004,0910:30:00,22 ,       0,64.17847,5.801717,13.45026
sgpcmbeC1.c1,2004,0911:30:00,22 ,       0,101.2329,7.323495,21.14661
sgpcmbeC1.c1,2004,0912:30:00,21 ,       0, 87.5145,7.160036,18.86015
sgpcmbeC1.c1,2004,0913:30:00,21 ,       0,114.5328,9.903594,24.88759
sgpcmbeC1.c1,2004,0914:30:00,20 ,       0,240.4829,16.66036,53.31446
sgpcmbeC1.c1,2004,0915:30:00,21 ,       0,68.81246,10.06448,17.26289
sgpcmbeC1.c1,2004,0916:30:00,20 ,       0,47.11628,6.146712,13.64226
sgpcmbeC1.c1,2004,0917:30:00,21 ,       0,19.58254,2.871922,5.136119
sgpcmbeC1.c1,2004,0918:30:00,20 ,       0,34.36623,4.779646,7.948545
sgpcmbeC1.c1,2004,0919:30:00,22 ,       0,32.43416, 5.29951,8.573769
sgpcmbeC1.c1,2004,0920:30:00,22 ,       0,86.46342,6.434897,18.16331
sgpcmbeC1.c1,2004,0921:30:00,23 ,       0,62.56517,6.207846,13.43479
sgpcmbeC1.c1,2004,0922:30:00,23 ,       0,47.87373,6.318866,11.88629
sgpcmbeC1.c1,2004,0923:30:00,21 ,       0, 101.363, 9.56801,22.59431