datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,01 0:30:00,29 ,0.451693,9.051294,1.935853,1.955305
sgpcmbeC1.c1,2004,01 1:30:00,29 ,0.434666,5.428803,1.402217,0.929483
sgpcmbeC1.c1,2004,01 2:30:00,29 ,0.409298,9.224483,1.978772,1.900229
sgpcmbeC1.c1,2004,01 3:30:00,29 ,0.342061,6.499914, 1.68413, 1.38285
sgpcmbeC1.c1,2004,01 4:30:00,29 ,0.350515,5.954149,1.733676,1.418282
sgpcmbeC1.c1,2004,01 5:30:00,29 , 0.30929,4.641207,1.639532,1.365387
sgpcmbeC1.c1,2004,01 6:30:00,29 ,0.432467,8.539342,1.963914,1.725102
sgpcmbeC1.c1,2004,01 7:30:00,29 ,0.350862, 4.98651,1.514135,1.130047
sgpcmbeC1.c1,2004,01 8:30:00,29 ,0.487045,7.882258,3.966456,2.305207
sgpcmbeC1.c1,2004,01 9:30:00,28 ,0.783192,10.57064,4.353971, 2.55937
sgpcmbeC1.c1,2004,0110:30:00,29 ,0.669846,9.072511,4.508875,2.125074
sgpcmbeC1.c1,2004,0111:30:00,30 ,0.906386,8.771356,4.621496,2.097227
sgpcmbeC1.c1,2004,0112:30:00,28 ,0.688293,8.058411,3.831838,1.973397
sgpcmbeC1.c1,2004,0113:30:00,29 ,1.097031,14.89188,3.078103,2.730375
sgpcmbeC1.c1,2004,0114:30:00,29 ,0.853119,7.386255,  2.6352,1.626943
sgpcmbeC1.c1,2004,0115:30:00,29 ,0.915894,5.328837,2.966411,1.390811
sgpcmbeC1.c1,2004,0116:30:00,29 ,0.977954, 12.0474,4.905764,2.877508
sgpcmbeC1.c1,2004,0117:30:00,29 ,1.063888,8.967047,4.490407,2.468787
sgpcmbeC1.c1,2004,0118:30:00,29 ,0.541715, 3.77164,1.885356,0.890181
sgpcmbeC1.c1,2004,0119:30:00,30 ,0.371981,6.206505,2.027985,1.381469
sgpcmbeC1.c1,2004,0120:30:00,29 ,0.353159,5.761195, 1.72159, 1.10871
sgpcmbeC1.c1,2004,0121:30:00,29 ,0.347604,6.787093,2.230055,1.835072
sgpcmbeC1.c1,2004,0122:30:00,29 , 0.34471,8.618228,1.804725,1.758872
sgpcmbeC1.c1,2004,0123:30:00,29 ,0.324439, 5.74443,1.544617,1.172218