datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,01 0:30:00,31 ,       0,1.580997,0.401353,0.609733
sgpcmbeC1.c1,2006,01 1:30:00,31 ,       0,1.799793,0.496641,0.666193
sgpcmbeC1.c1,2006,01 2:30:00,31 ,       0,1.811568, 0.28731,0.540717
sgpcmbeC1.c1,2006,01 3:30:00,31 ,       0,1.741594,0.304341,0.548308
sgpcmbeC1.c1,2006,01 4:30:00,31 ,       0,1.778733,0.519781,0.702591
sgpcmbeC1.c1,2006,01 5:30:00,31 ,       0,1.743478,0.368534,0.635396
sgpcmbeC1.c1,2006,01 6:30:00,31 ,       0,1.586358,0.276239,0.481354
sgpcmbeC1.c1,2006,01 7:30:00,31 ,       0,14.42886,6.617188,3.636639
sgpcmbeC1.c1,2006,01 8:30:00,31 ,8.630244,62.42093,39.82768,13.97337
sgpcmbeC1.c1,2006,01 9:30:00,31 , 5.10272,132.0765, 50.7551,26.31842
sgpcmbeC1.c1,2006,0110:30:00,31 ,  11.138,110.6071, 51.9711,  26.154
sgpcmbeC1.c1,2006,0111:30:00,31 ,16.78652,150.0559,50.85285,36.46883
sgpcmbeC1.c1,2006,0112:30:00,31 ,2.165045,114.5455,33.61864, 32.7557
sgpcmbeC1.c1,2006,0113:30:00,31 ,12.81208,176.9366, 50.5983,46.23722
sgpcmbeC1.c1,2006,0114:30:00,31 ,23.79047,141.4635,53.82624,33.66852
sgpcmbeC1.c1,2006,0115:30:00,31 ,18.90873,123.2432,49.94746,19.15485
sgpcmbeC1.c1,2006,0116:30:00,31 ,7.918211,66.31295,48.05838,15.34421
sgpcmbeC1.c1,2006,0117:30:00,31 ,3.058826,40.78593,19.51362,9.410048
sgpcmbeC1.c1,2006,0118:30:00,29 ,       0,1.692158,0.436167,0.568885
sgpcmbeC1.c1,2006,0119:30:00,31 ,       0,2.129692,0.391111,0.638145
sgpcmbeC1.c1,2006,0120:30:00,30 ,       0,1.615268,0.443362,0.624335
sgpcmbeC1.c1,2006,0121:30:00,30 ,       0,1.887525,0.519946,0.608365
sgpcmbeC1.c1,2006,0122:30:00,30 ,       0, 1.83637,0.491402,0.676186
sgpcmbeC1.c1,2006,0123:30:00,30 ,       0,1.548036,0.365123,0.576313