datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,05 0:30:00,26 ,1.086995,3.849409,2.542448,0.828518
sgpcmbeC1.c1,2004,05 1:30:00,26 ,1.119125,4.203101,2.523576,0.869283
sgpcmbeC1.c1,2004,05 2:30:00,27 ,1.117913,4.048703,2.506552,0.850577
sgpcmbeC1.c1,2004,05 3:30:00,26 ,1.094404,4.000356,2.505958,0.876649
sgpcmbeC1.c1,2004,05 4:30:00,26 ,1.074344,3.876802,2.492783,0.880207
sgpcmbeC1.c1,2004,05 5:30:00,26 ,1.056428, 4.09182,2.519139,0.898192
sgpcmbeC1.c1,2004,05 6:30:00,26 ,  1.1084,4.115973,2.513773,0.889441
sgpcmbeC1.c1,2004,05 7:30:00,27 ,1.093293,4.014832,2.499897, 0.84854
sgpcmbeC1.c1,2004,05 8:30:00,27 ,1.079826, 3.83145,2.473261,0.821019
sgpcmbeC1.c1,2004,05 9:30:00,27 ,1.122892, 3.69947,2.486481,0.786684
sgpcmbeC1.c1,2004,0510:30:00,27 ,1.126344,3.620019,2.488851,0.774477
sgpcmbeC1.c1,2004,0511:30:00,27 ,1.205544,3.627001,2.513596,0.769536
sgpcmbeC1.c1,2004,0512:30:00,27 ,1.207252,3.603637,2.527172,0.770414
sgpcmbeC1.c1,2004,0513:30:00,27 ,1.242552,3.660786,2.526389,0.799209
sgpcmbeC1.c1,2004,0514:30:00,27 ,1.170593,3.965085,2.559859,  0.8453
sgpcmbeC1.c1,2004,0515:30:00,27 ,1.174121,3.975893, 2.62166,0.874392
sgpcmbeC1.c1,2004,0516:30:00,27 ,1.249266,4.004354,2.649554,0.872495
sgpcmbeC1.c1,2004,0517:30:00,27 ,1.234493,3.928967,2.658415,0.878303
sgpcmbeC1.c1,2004,0518:30:00,27 ,1.167171,3.627648,2.508607,0.800869
sgpcmbeC1.c1,2004,0519:30:00,27 ,1.096064,4.040615,2.490767, 0.82753
sgpcmbeC1.c1,2004,0520:30:00,27 ,1.051912,3.618164,2.479223,0.792892
sgpcmbeC1.c1,2004,0521:30:00,27 ,1.042616,3.662597, 2.48066,0.783572
sgpcmbeC1.c1,2004,0522:30:00,27 ,1.053917,3.694457, 2.54054,0.824738
sgpcmbeC1.c1,2004,0523:30:00,26 ,1.063604,3.734902,2.533291,0.867423