datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,07 0:30:00,31 ,0.445948,11.27893,2.117761,2.251131
sgpcmbeC1.c1,2002,07 1:30:00,31 , 0.43987,10.68293,2.121391,2.141789
sgpcmbeC1.c1,2002,07 2:30:00,31 ,0.325255,  6.6995,1.745433,1.644325
sgpcmbeC1.c1,2002,07 3:30:00,31 ,0.347189,13.40422,2.140485,2.883392
sgpcmbeC1.c1,2002,07 4:30:00,31 ,0.383966,12.19096,3.167214,3.232598
sgpcmbeC1.c1,2002,07 5:30:00,31 ,0.307603,11.71262,2.688066,3.140601
sgpcmbeC1.c1,2002,07 6:30:00,31 ,0.647808,10.39192, 3.08884,2.852531
sgpcmbeC1.c1,2002,07 7:30:00,31 ,0.829355,22.31862,3.587957,4.056088
sgpcmbeC1.c1,2002,07 8:30:00,31 ,0.862773,14.25499,3.893553,2.892688
sgpcmbeC1.c1,2002,07 9:30:00,31 ,0.845209,17.00555,4.114899, 3.83442
sgpcmbeC1.c1,2002,0710:30:00,31 , 1.01042,14.14007,4.306172,3.436565
sgpcmbeC1.c1,2002,0711:30:00,31 ,1.249222, 11.1673,3.987555, 2.30427
sgpcmbeC1.c1,2002,0712:30:00,31 ,0.966336,10.62761,3.758026,2.222048
sgpcmbeC1.c1,2002,0713:30:00,31 ,0.701889,8.240259,3.931127,1.984145
sgpcmbeC1.c1,2002,0714:30:00,31 ,0.928225,7.348357,3.064377,1.592547
sgpcmbeC1.c1,2002,0715:30:00,31 ,0.782217,13.10166,3.352487, 2.50494
sgpcmbeC1.c1,2002,0716:30:00,31 ,0.961484,10.62487,3.759867,2.853278
sgpcmbeC1.c1,2002,0717:30:00,31 ,0.939016,11.18849,3.544315, 2.61976
sgpcmbeC1.c1,2002,0718:30:00,31 ,0.917145,10.82947,3.972032,2.809557
sgpcmbeC1.c1,2002,0719:30:00,31 ,0.863175,12.78004,3.937515,2.646291
sgpcmbeC1.c1,2002,0720:30:00,31 ,0.590566,15.60334, 2.78172,2.772294
sgpcmbeC1.c1,2002,0721:30:00,31 ,0.504443,8.509563,2.065555,1.883053
sgpcmbeC1.c1,2002,0722:30:00,31 ,0.524519,14.66301,2.131069,2.518754
sgpcmbeC1.c1,2002,0723:30:00,31 ,0.508892,6.203448,1.511217,1.173383