datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,02 0:30:00,15 ,0.211241,1.370306,0.826381,0.395088
sgpcmbeC1.c1,2002,02 1:30:00,15 ,0.203557,1.300853,0.797891,0.369102
sgpcmbeC1.c1,2002,02 2:30:00,15 ,0.202112,  1.3437,0.793276,0.372531
sgpcmbeC1.c1,2002,02 3:30:00,15 ,0.209173,1.392126,0.793359,0.381721
sgpcmbeC1.c1,2002,02 4:30:00,15 ,0.221637,1.474885,0.784726,0.371752
sgpcmbeC1.c1,2002,02 5:30:00,15 ,0.235387,1.534871,0.786311,0.371653
sgpcmbeC1.c1,2002,02 6:30:00,15 ,0.243434, 1.54871,0.779514,0.361947
sgpcmbeC1.c1,2002,02 7:30:00,15 ,0.239968,1.575545,0.763664,0.338935
sgpcmbeC1.c1,2002,02 8:30:00,15 ,0.261484,1.623496,0.759716,0.339162
sgpcmbeC1.c1,2002,02 9:30:00,17 ,0.193459,1.634865,0.740733,0.358305
sgpcmbeC1.c1,2002,0210:30:00,18 ,0.229659,1.834672,0.731999, 0.37536
sgpcmbeC1.c1,2002,0211:30:00,17 ,0.269209,1.949118,0.770529,0.393888
sgpcmbeC1.c1,2002,0212:30:00,17 ,0.267921,2.024497, 0.79718,0.408336
sgpcmbeC1.c1,2002,0213:30:00,17 ,0.264454,2.173488,0.808024, 0.43105
sgpcmbeC1.c1,2002,0214:30:00,17 ,0.269482,2.193393,0.822769,0.430174
sgpcmbeC1.c1,2002,0215:30:00,15 ,0.272605,1.112685,0.743543,0.277176
sgpcmbeC1.c1,2002,0216:30:00,15 ,0.270186,1.248685,0.761448,0.313212
sgpcmbeC1.c1,2002,0217:30:00,15 ,0.275065,1.370118,0.782671,0.340982
sgpcmbeC1.c1,2002,0218:30:00,15 ,0.274157,1.508189,0.806317,0.359743
sgpcmbeC1.c1,2002,0219:30:00,15 ,0.254785,1.634897,0.815251,0.382498
sgpcmbeC1.c1,2002,0220:30:00,15 ,0.243472,2.137998,0.848406,0.484099
sgpcmbeC1.c1,2002,0221:30:00,15 ,0.228042,2.592688,0.872219,0.585426
sgpcmbeC1.c1,2002,0222:30:00,15 ,0.226853,1.824224,0.834554,0.447854
sgpcmbeC1.c1,2002,0223:30:00,15 ,0.210773, 1.50011,0.828577, 0.41619