datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2000,09 0:30:00,18 ,       0,29.47968,4.817123,7.359546
sgpcmbeC1.c1,2000,09 1:30:00,18 ,       0,41.29521,5.645428,9.790165
sgpcmbeC1.c1,2000,09 2:30:00,18 ,       0,43.09071,8.470035,13.59715
sgpcmbeC1.c1,2000,09 3:30:00,17 ,       0, 85.1177,14.15096,26.54625
sgpcmbeC1.c1,2000,09 4:30:00,17 ,       0, 77.6603,12.74931,23.60637
sgpcmbeC1.c1,2000,09 5:30:00,17 ,       0, 162.776,18.91465,42.43628
sgpcmbeC1.c1,2000,09 6:30:00,17 ,       0,241.1729,23.31516,59.56593
sgpcmbeC1.c1,2000,09 7:30:00,18 ,       0,22.77917,4.109103,7.173576
sgpcmbeC1.c1,2000,09 8:30:00,20 ,       0,58.07414,5.033018,12.80895
sgpcmbeC1.c1,2000,09 9:30:00,21 ,       0,67.76646,5.112973,14.59137
sgpcmbeC1.c1,2000,0910:30:00,21 ,       0,39.82706,4.186343,8.719284
sgpcmbeC1.c1,2000,0911:30:00,20 ,       0,14.23547,3.433626,  4.7516
sgpcmbeC1.c1,2000,0912:30:00,19 ,       0,14.97601,3.096829,4.537184
sgpcmbeC1.c1,2000,0913:30:00,20 ,       0, 34.2312,4.220562,8.199182
sgpcmbeC1.c1,2000,0914:30:00,21 ,       0,13.13157,2.351804,3.802115
sgpcmbeC1.c1,2000,0915:30:00,20 ,       0,11.35687,2.053218, 3.39554
sgpcmbeC1.c1,2000,0916:30:00,19 ,       0,9.346598,1.373849,2.551712
sgpcmbeC1.c1,2000,0917:30:00,19 ,       0,9.058722,1.726654,2.899646
sgpcmbeC1.c1,2000,0918:30:00,20 ,       0,10.61144,2.395346,3.697631
sgpcmbeC1.c1,2000,0919:30:00,20 ,       0,10.24224,2.394753,3.875692
sgpcmbeC1.c1,2000,0920:30:00,19 ,       0, 10.1029,2.256074,3.664885
sgpcmbeC1.c1,2000,0921:30:00,18 ,       0,10.31955,3.072837,4.125598
sgpcmbeC1.c1,2000,0922:30:00,18 ,       0, 78.7616,8.358496,18.75527
sgpcmbeC1.c1,2000,0923:30:00,18 ,       0,13.09291,3.233018,4.353284