datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,08 0:30:00,3 ,3.897764,4.970284,4.300516,0.583993
sgpcmbeC1.c1,2007,08 1:30:00,3 ,3.810472,5.149898,4.355093,0.703889
sgpcmbeC1.c1,2007,08 2:30:00,3 ,3.437218,5.272007,4.297411,0.922729
sgpcmbeC1.c1,2007,08 3:30:00,3 ,3.243778,5.240312,4.250739,0.998381
sgpcmbeC1.c1,2007,08 4:30:00,3 , 3.34669,5.141796,4.277041,0.899349
sgpcmbeC1.c1,2007,08 5:30:00,3 ,3.422065,5.125904,4.291502, 0.85246
sgpcmbeC1.c1,2007,08 6:30:00,3 ,3.309434,5.136995,4.266953,0.916915
sgpcmbeC1.c1,2007,08 7:30:00,3 ,3.283541,5.126657,4.248869,0.924671
sgpcmbeC1.c1,2007,08 8:30:00,3 , 3.37677,5.248008, 4.30079,0.935835
sgpcmbeC1.c1,2007,08 9:30:00,3 ,3.383033,5.352683,4.324384,0.987699
sgpcmbeC1.c1,2007,0810:30:00,2 ,3.451977,5.390187,4.421082,1.370521
sgpcmbeC1.c1,2007,0811:30:00,2 ,3.470927,5.271302,4.371115,1.273057
sgpcmbeC1.c1,2007,0812:30:00,2 , 3.91945,5.172029, 4.54574,0.885707
sgpcmbeC1.c1,2007,0813:30:00,2 , 3.96153,4.927431,4.444481,0.682995
sgpcmbeC1.c1,2007,0814:30:00,2 ,4.040667,4.798262,4.419465,0.535701
sgpcmbeC1.c1,2007,0815:30:00,2 ,  4.1229,4.767026,4.444963,0.455466
sgpcmbeC1.c1,2007,0816:30:00,2 ,4.281126,4.841687,4.561407,0.396376
sgpcmbeC1.c1,2007,0817:30:00,2 ,4.307528,4.862458,4.584993,0.392395
sgpcmbeC1.c1,2007,0818:30:00,2 ,4.039566,4.638519,4.339043,0.423524
sgpcmbeC1.c1,2007,0819:30:00,2 ,4.087025,4.686051,4.386538,0.423575
sgpcmbeC1.c1,2007,0820:30:00,2 ,3.997463,  4.6232,4.310332,0.442463
sgpcmbeC1.c1,2007,0821:30:00,2 ,3.807497,4.596457,4.201977,0.557879
sgpcmbeC1.c1,2007,0822:30:00,2 ,3.973996,4.505504, 4.23975,0.375833
sgpcmbeC1.c1,2007,0823:30:00,2 ,3.958786,4.316571,4.137679,0.252992