datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,05 0:30:00,27 ,       0,0.477198,0.017674,0.091837
sgpcmbeC1.c1,1999,05 1:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,05 2:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,05 3:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,05 4:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,05 5:30:00,29 ,       0, 10.9607,4.157708,3.210672
sgpcmbeC1.c1,1999,05 6:30:00,28 ,   0.049,18.18191,9.255434,6.175114
sgpcmbeC1.c1,1999,05 7:30:00,28 ,2.589515,37.46134,12.23342,7.532679
sgpcmbeC1.c1,1999,05 8:30:00,28 ,1.732828,47.80518,14.99787,12.19102
sgpcmbeC1.c1,1999,05 9:30:00,29 ,3.266865,54.86819,21.30718,15.58908
sgpcmbeC1.c1,1999,0510:30:00,29 ,1.971545,64.08678,18.33138,15.26757
sgpcmbeC1.c1,1999,0511:30:00,29 ,0.977994,55.24338,19.55292,17.68151
sgpcmbeC1.c1,1999,0512:30:00,29 , 0.35829,65.41216,21.92011,20.15689
sgpcmbeC1.c1,1999,0513:30:00,29 ,0.728315,60.92206,22.43499,20.50004
sgpcmbeC1.c1,1999,0514:30:00,29 ,3.545656,58.11691,25.09248,17.21457
sgpcmbeC1.c1,1999,0515:30:00,29 ,4.590464,51.09724, 23.8794,15.00179
sgpcmbeC1.c1,1999,0516:30:00,29 ,2.290984,49.58129,20.42181,11.24171
sgpcmbeC1.c1,1999,0517:30:00,29 ,1.302464, 26.8033, 14.8825,6.409804
sgpcmbeC1.c1,1999,0518:30:00,29 ,1.710509, 22.2282,13.72415,5.103608
sgpcmbeC1.c1,1999,0519:30:00,29 ,       0,8.283465,3.227418,2.345819
sgpcmbeC1.c1,1999,0520:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0521:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0522:30:00,29 ,       0,0.015261,0.000526,0.002834
sgpcmbeC1.c1,1999,0523:30:00,28 ,       0,0.728019,0.049521,0.175744