datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,05 0:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,05 1:30:00,31 ,       0,0.029966,0.000967,0.005382
sgpcmbeC1.c1,1998,05 2:30:00,31 ,       0,0.232351,0.007495,0.041731
sgpcmbeC1.c1,1998,05 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,05 4:30:00,31 ,       0,1.867817,0.062029,0.335286
sgpcmbeC1.c1,1998,05 5:30:00,31 ,0.312796,8.279552,3.343879,2.047744
sgpcmbeC1.c1,1998,05 6:30:00,31 ,1.105275,20.59265,11.61808,5.004022
sgpcmbeC1.c1,1998,05 7:30:00,31 ,2.708651,26.06366,12.44783,5.366287
sgpcmbeC1.c1,1998,05 8:30:00,31 ,4.969163, 32.8358,15.24903,8.373583
sgpcmbeC1.c1,1998,05 9:30:00,31 ,4.592638, 41.9573,13.95198,10.28381
sgpcmbeC1.c1,1998,0510:30:00,31 , 2.16331,46.08669,14.50342,12.27159
sgpcmbeC1.c1,1998,0511:30:00,31 ,0.986166,44.13559,14.42497, 14.6819
sgpcmbeC1.c1,1998,0512:30:00,31 ,0.653969,54.12783, 19.5799,17.68862
sgpcmbeC1.c1,1998,0513:30:00,31 ,1.356176,55.92944,22.34614,17.24008
sgpcmbeC1.c1,1998,0514:30:00,31 ,2.338776,59.02208, 23.3928,17.20067
sgpcmbeC1.c1,1998,0515:30:00,31 ,5.336317,59.76937,24.44248,16.82164
sgpcmbeC1.c1,1998,0516:30:00,31 ,8.063285,48.37677,18.51668, 11.1528
sgpcmbeC1.c1,1998,0517:30:00,31 ,2.024475,28.99636,14.41134,5.880259
sgpcmbeC1.c1,1998,0518:30:00,31 ,0.822778,16.28315,10.86031,4.490694
sgpcmbeC1.c1,1998,0519:30:00,31 ,       0,6.614573,2.699852,1.698007
sgpcmbeC1.c1,1998,0520:30:00,31 ,       0,0.170779,0.005509,0.030673
sgpcmbeC1.c1,1998,0521:30:00,31 ,       0,0.033357,0.001076,0.005991
sgpcmbeC1.c1,1998,0522:30:00,31 ,       0,0.046595,0.001503,0.008369
sgpcmbeC1.c1,1998,0523:30:00,31 ,       0,0.037009,0.001194,0.006647