datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,04 0:30:00,30 ,       0,0.486685,0.118871,0.175895
sgpcmbeC1.c1,2005,04 1:30:00,30 ,       0,0.468512,0.096668,0.161153
sgpcmbeC1.c1,2005,04 2:30:00,30 ,       0,0.279102,0.053012, 0.09854
sgpcmbeC1.c1,2005,04 3:30:00,30 ,       0,0.281994,0.030865,0.082293
sgpcmbeC1.c1,2005,04 4:30:00,30 ,       0,0.185378,0.014333,0.042582
sgpcmbeC1.c1,2005,04 5:30:00,30 ,       0,3.647593,0.374275,0.839054
sgpcmbeC1.c1,2005,04 6:30:00,30 ,       0,46.28128, 21.3667,16.95345
sgpcmbeC1.c1,2005,04 7:30:00,30 , 0.05253,62.07887,38.68307,24.34173
sgpcmbeC1.c1,2005,04 8:30:00,30 ,0.088373,240.2498, 73.7869, 55.7543
sgpcmbeC1.c1,2005,04 9:30:00,30 ,0.432526,200.6224,70.06326,56.54684
sgpcmbeC1.c1,2005,0410:30:00,30 ,0.020132,285.6002,87.86133,79.83531
sgpcmbeC1.c1,2005,0411:30:00,30 ,0.468996,346.3023,98.96993,104.7666
sgpcmbeC1.c1,2005,0412:30:00,30 ,0.215975,330.2921,133.6292,120.6916
sgpcmbeC1.c1,2005,0413:30:00,30 ,0.247039,329.4708,112.7116,101.7155
sgpcmbeC1.c1,2005,0414:30:00,30 ,0.072713,278.1902,81.52795,69.82652
sgpcmbeC1.c1,2005,0415:30:00,30 ,0.180851,210.5312,75.95703,59.48688
sgpcmbeC1.c1,2005,0416:30:00,30 ,0.342725, 162.287,71.55264,41.47218
sgpcmbeC1.c1,2005,0417:30:00,30 ,       0,98.66508,44.73652,27.79215
sgpcmbeC1.c1,2005,0418:30:00,30 ,       0,45.85804,18.60444, 15.7215
sgpcmbeC1.c1,2005,0419:30:00,30 ,       0,2.283446,0.203484,0.434385
sgpcmbeC1.c1,2005,0420:30:00,30 ,       0,0.213015, 0.04669,0.080267
sgpcmbeC1.c1,2005,0421:30:00,30 ,       0, 0.39672,0.099633,0.148558
sgpcmbeC1.c1,2005,0422:30:00,30 ,       0,0.411658,0.092189,0.139921
sgpcmbeC1.c1,2005,0423:30:00,30 ,       0,0.464262,0.066887,0.120968