datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,01 0:30:00,24 ,0.374068,2.517251, 0.96807,0.474341
sgpcmbeC1.c1,2006,01 1:30:00,24 ,0.364167,2.444434,0.970674,0.468239
sgpcmbeC1.c1,2006,01 2:30:00,23 ,0.383388,2.570732,1.004529, 0.48655
sgpcmbeC1.c1,2006,01 3:30:00,23 ,0.378706,2.625868,1.007319,0.496554
sgpcmbeC1.c1,2006,01 4:30:00,23 ,0.358915,2.414922,1.002261,0.462774
sgpcmbeC1.c1,2006,01 5:30:00,23 ,0.336293,2.431783,1.007605,0.462911
sgpcmbeC1.c1,2006,01 6:30:00,23 ,0.386886, 2.22129,0.987199,0.422783
sgpcmbeC1.c1,2006,01 7:30:00,23 ,0.347796,1.808425,0.958462,0.373875
sgpcmbeC1.c1,2006,01 8:30:00,23 ,0.307527,1.576044,0.934233,0.352319
sgpcmbeC1.c1,2006,01 9:30:00,25 ,0.349849,1.575163,0.888247,0.337645
sgpcmbeC1.c1,2006,0110:30:00,25 ,0.399835,1.620368,0.876836,0.340944
sgpcmbeC1.c1,2006,0111:30:00,25 ,0.454735,  1.7093,0.878134,0.340616
sgpcmbeC1.c1,2006,0112:30:00,25 ,0.433751,1.745271, 0.86947,0.345899
sgpcmbeC1.c1,2006,0113:30:00,24 ,0.453637,1.679349, 0.86388,0.350234
sgpcmbeC1.c1,2006,0114:30:00,24 ,0.519353,1.517823,0.870285,0.305294
sgpcmbeC1.c1,2006,0115:30:00,24 ,0.514189,1.862814,0.899304,0.358383
sgpcmbeC1.c1,2006,0116:30:00,24 ,0.488608,1.889689, 0.91811,0.379075
sgpcmbeC1.c1,2006,0117:30:00,24 ,0.492414,1.703964,0.953664,0.367021
sgpcmbeC1.c1,2006,0118:30:00,24 ,0.539632,1.816488, 0.95497,0.358899
sgpcmbeC1.c1,2006,0119:30:00,24 , 0.53765,1.697547, 0.97497,0.363714
sgpcmbeC1.c1,2006,0120:30:00,24 ,0.492331,2.046783,0.985833,0.388545
sgpcmbeC1.c1,2006,0121:30:00,24 ,0.466641,2.449093,0.980067,0.435307
sgpcmbeC1.c1,2006,0122:30:00,24 ,0.435539,2.638474, 0.98375,0.479454
sgpcmbeC1.c1,2006,0123:30:00,24 ,0.367647,2.568324,0.970509,0.478435