datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,09 0:30:00,26 ,0.187754,2.968926,1.619269,0.872406
sgpcmbeC1.c1,2005,09 1:30:00,26 ,       0,3.025242,1.682626, 0.86977
sgpcmbeC1.c1,2005,09 2:30:00,26 ,       0,3.040033, 1.67389,0.930205
sgpcmbeC1.c1,2005,09 3:30:00,26 ,       0, 3.03493,1.736995,0.946886
sgpcmbeC1.c1,2005,09 4:30:00,26 ,       0,3.054626,1.755211,0.936124
sgpcmbeC1.c1,2005,09 5:30:00,26 ,       0,2.870642,1.575074,0.939963
sgpcmbeC1.c1,2005,09 6:30:00,30 ,0.197889,20.60293,7.448262,5.622063
sgpcmbeC1.c1,2005,09 7:30:00,30 ,0.015491,162.0214,  84.089,52.46918
sgpcmbeC1.c1,2005,09 8:30:00,30 ,0.575577,347.5628,204.9747,106.4736
sgpcmbeC1.c1,2005,09 9:30:00,29 , 30.2162,530.8034,320.6184,156.2155
sgpcmbeC1.c1,2005,0910:30:00,30 ,39.55164,670.2174,437.9753,186.2567
sgpcmbeC1.c1,2005,0911:30:00,30 ,52.76889,  760.97,522.7511, 190.272
sgpcmbeC1.c1,2005,0912:30:00,30 ,4.556335,790.6317,542.0871,216.4057
sgpcmbeC1.c1,2005,0913:30:00,30 ,1.722534,752.7823,516.0264, 216.816
sgpcmbeC1.c1,2005,0914:30:00,30 ,0.064682,654.2124,454.4998,160.8307
sgpcmbeC1.c1,2005,0915:30:00,30 ,0.138931,506.1934, 334.617,153.1333
sgpcmbeC1.c1,2005,0916:30:00,30 , 0.00267,332.6772,194.8606,105.6995
sgpcmbeC1.c1,2005,0917:30:00,30 ,0.008955,150.0255,75.59952,43.61905
sgpcmbeC1.c1,2005,0918:30:00,30 ,0.107467,20.04266,5.639154,5.903165
sgpcmbeC1.c1,2005,0919:30:00,28 ,       0,3.075039,1.288916,0.926621
sgpcmbeC1.c1,2005,0920:30:00,27 ,       0,3.009347,1.330052, 0.88786
sgpcmbeC1.c1,2005,0921:30:00,25 ,       0,2.596356,1.327535,0.865491
sgpcmbeC1.c1,2005,0922:30:00,27 ,       0,3.323838,1.418871,1.017536
sgpcmbeC1.c1,2005,0923:30:00,26 ,       0,2.925862,1.346896,0.931576