datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,05 0:30:00,30 ,0.524757,14.06243,4.361095,4.420949
sgpcmbeC1.c1,2002,05 1:30:00,30 ,0.276931, 25.3348,4.048553,5.340352
sgpcmbeC1.c1,2002,05 2:30:00,30 ,0.508408,10.20942,2.935798,2.763433
sgpcmbeC1.c1,2002,05 3:30:00,30 ,0.419548,14.22581,4.245723,4.347463
sgpcmbeC1.c1,2002,05 4:30:00,30 ,0.317317,9.632323,3.596452,3.099867
sgpcmbeC1.c1,2002,05 5:30:00,30 ,0.416879, 14.4987,4.719304,4.591634
sgpcmbeC1.c1,2002,05 6:30:00,31 ,0.444553,26.58866, 5.67011,5.798814
sgpcmbeC1.c1,2002,05 7:30:00,31 ,0.551239,35.41923,7.961155,9.095166
sgpcmbeC1.c1,2002,05 8:30:00,31 ,0.717186,19.89642,5.732747,5.174924
sgpcmbeC1.c1,2002,05 9:30:00,31 ,0.730196,19.27004,5.122814,4.624173
sgpcmbeC1.c1,2002,0510:30:00,31 ,0.371684,17.68006,4.943058,4.118184
sgpcmbeC1.c1,2002,0511:30:00,31 ,0.645624,20.98184,4.412033,4.211996
sgpcmbeC1.c1,2002,0512:30:00,31 , 0.58563,14.71805,3.409829,3.263785
sgpcmbeC1.c1,2002,0513:30:00,31 ,0.845034, 12.0603,3.080615,2.548403
sgpcmbeC1.c1,2002,0514:30:00,31 ,0.676409,15.78549,3.811275,3.850076
sgpcmbeC1.c1,2002,0515:30:00,31 ,0.640431,13.55761,3.537871,3.538062
sgpcmbeC1.c1,2002,0516:30:00,31 ,0.619195,14.48642,4.007717,3.687279
sgpcmbeC1.c1,2002,0517:30:00,31 ,0.583039,12.06133,  3.1748, 3.35395
sgpcmbeC1.c1,2002,0518:30:00,31 ,0.596324,18.39238,4.625325,4.563204
sgpcmbeC1.c1,2002,0519:30:00,31 ,0.675471,19.41991,5.870587,5.003911
sgpcmbeC1.c1,2002,0520:30:00,31 ,0.368394,14.00886,3.562025,3.478109
sgpcmbeC1.c1,2002,0521:30:00,31 ,0.316809,13.77002, 3.76425,3.945862
sgpcmbeC1.c1,2002,0522:30:00,30 ,0.449392,21.33946,5.454707,5.965154
sgpcmbeC1.c1,2002,0523:30:00,30 ,0.472581,15.66268,4.447824,4.535132