datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,05 0:30:00,31 ,       0,0.609181,0.076334,0.175023
sgpcmbeC1.c1,2006,05 1:30:00,30 ,       0,0.888517,0.094545, 0.22643
sgpcmbeC1.c1,2006,05 2:30:00,31 ,       0,0.502153,  0.0648,0.140419
sgpcmbeC1.c1,2006,05 3:30:00,31 ,       0,0.231211,0.012252,0.042711
sgpcmbeC1.c1,2006,05 4:30:00,31 ,       0,1.066843,0.077304,0.215133
sgpcmbeC1.c1,2006,05 5:30:00,31 ,0.159714, 7.87685, 2.65625,2.655281
sgpcmbeC1.c1,2006,05 6:30:00,31 ,0.047741,118.1438,55.30604,41.89963
sgpcmbeC1.c1,2006,05 7:30:00,31 ,0.034473,306.6976,170.4505,111.8687
sgpcmbeC1.c1,2006,05 8:30:00,31 , 0.14357,501.2221,282.1063, 190.209
sgpcmbeC1.c1,2006,05 9:30:00,31 ,       0,670.1604,405.7809,236.2887
sgpcmbeC1.c1,2006,0510:30:00,31 ,0.227402,780.7844,484.0201,292.0066
sgpcmbeC1.c1,2006,0511:30:00,31 ,0.803604,864.5942,520.5741,321.7355
sgpcmbeC1.c1,2006,0512:30:00,31 ,0.158112,903.7639,500.2499,335.3996
sgpcmbeC1.c1,2006,0513:30:00,31 ,0.895828,829.8748,475.8445,301.3332
sgpcmbeC1.c1,2006,0514:30:00,31 ,0.484192,759.4042,442.8678,275.9842
sgpcmbeC1.c1,2006,0515:30:00,31 ,0.542679,651.3153,373.8315,217.5248
sgpcmbeC1.c1,2006,0516:30:00,31 ,0.042595,483.1709,284.4966,160.2776
sgpcmbeC1.c1,2006,0517:30:00,31 ,       0, 290.709,172.3418, 95.7527
sgpcmbeC1.c1,2006,0518:30:00,31 ,       0,103.8211,49.05281, 37.5033
sgpcmbeC1.c1,2006,0519:30:00,31 ,0.150266, 9.22241,2.335143,2.128054
sgpcmbeC1.c1,2006,0520:30:00,31 ,       0,2.170943,0.372809,0.626997
sgpcmbeC1.c1,2006,0521:30:00,31 ,       0, 2.27651,0.190555,0.471736
sgpcmbeC1.c1,2006,0522:30:00,31 ,       0,1.736242,0.145137,0.360821
sgpcmbeC1.c1,2006,0523:30:00,31 ,       0,0.724934,0.089353,0.194836