datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,04 0:30:00,19 ,       0,0.980317, 0.18994,0.280851
sgpcmbeC1.c1,1999,04 1:30:00,19 ,       0, 0.83364,0.160134,0.235502
sgpcmbeC1.c1,1999,04 2:30:00,19 ,       0,1.958511,0.224547,0.462814
sgpcmbeC1.c1,1999,04 3:30:00,19 ,       0,1.491803,0.207825,0.379347
sgpcmbeC1.c1,1999,04 4:30:00,19 ,       0,1.514917,0.193318,0.366793
sgpcmbeC1.c1,1999,04 5:30:00,19 ,0.006359, 1.37062, 0.40606,0.313339
sgpcmbeC1.c1,1999,04 6:30:00,19 ,0.265593,53.66013, 19.5164,18.75807
sgpcmbeC1.c1,1999,04 7:30:00,19 ,0.067165,231.7933,102.6381,89.08451
sgpcmbeC1.c1,1999,04 8:30:00,18 , 0.04628, 427.936,229.9818,175.9482
sgpcmbeC1.c1,1999,04 9:30:00,18 ,       0,609.5466,385.1519,229.6904
sgpcmbeC1.c1,1999,0410:30:00,18 ,0.042625,744.0753, 458.722,296.1257
sgpcmbeC1.c1,1999,0411:30:00,18 ,       0,837.0068,545.9874, 304.487
sgpcmbeC1.c1,1999,0412:30:00,18 ,1.610245,865.5029, 528.912,325.9626
sgpcmbeC1.c1,1999,0413:30:00,18 ,0.034988,833.8025,497.5558,337.2903
sgpcmbeC1.c1,1999,0414:30:00,18 ,       0, 747.132,413.2178,296.1508
sgpcmbeC1.c1,1999,0415:30:00,18 ,0.121115,605.2332,309.6198,223.7068
sgpcmbeC1.c1,1999,0416:30:00,18 ,       0,416.8352,219.7465,157.7443
sgpcmbeC1.c1,1999,0417:30:00,18 ,0.001184,222.2653, 95.5944,84.89685
sgpcmbeC1.c1,1999,0418:30:00,18 ,0.079319,50.47483,16.89043,17.47118
sgpcmbeC1.c1,1999,0419:30:00,18 ,       0,1.030224,0.470669,0.360769
sgpcmbeC1.c1,1999,0420:30:00,18 ,       0,0.701336,0.137517, 0.21479
sgpcmbeC1.c1,1999,0421:30:00,18 ,       0,0.931513,0.257122,0.277102
sgpcmbeC1.c1,1999,0422:30:00,18 ,       0,0.635278,0.232094,0.231885
sgpcmbeC1.c1,1999,0423:30:00,18 ,       0, 1.06674,0.218962,0.348076