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,       0,       0
sgpcmbeC1.c1,1998,05 2:30:00,31 ,       0,0.193557,0.006244,0.034764
sgpcmbeC1.c1,1998,05 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,05 4:30:00,31 ,       0,0.051167,0.002659,0.010609
sgpcmbeC1.c1,1998,05 5:30:00,31 ,0.001573,13.13596,1.925489,2.935717
sgpcmbeC1.c1,1998,05 6:30:00,31 ,0.016166,49.89707,23.29701,17.57058
sgpcmbeC1.c1,1998,05 7:30:00,31 ,       0,72.09148, 34.8196,21.99755
sgpcmbeC1.c1,1998,05 8:30:00,30 ,0.038752,190.6602,60.53302,47.43863
sgpcmbeC1.c1,1998,05 9:30:00,30 ,1.030962,151.7672,59.16164, 42.2363
sgpcmbeC1.c1,1998,0510:30:00,31 ,2.559325,323.2621, 75.1967,71.08402
sgpcmbeC1.c1,1998,0511:30:00,31 ,0.565529,301.8241,69.33927, 82.6994
sgpcmbeC1.c1,1998,0512:30:00,30 ,2.370089,351.1575,101.1335, 108.003
sgpcmbeC1.c1,1998,0513:30:00,31 ,2.544785,308.1246,111.7038,97.09178
sgpcmbeC1.c1,1998,0514:30:00,31 ,5.771879,294.4344,104.6653,77.02469
sgpcmbeC1.c1,1998,0515:30:00,31 ,1.050187,237.6573,92.90334,56.32116
sgpcmbeC1.c1,1998,0516:30:00,31 ,0.215304,166.8659,62.99632,42.05015
sgpcmbeC1.c1,1998,0517:30:00,31 ,       0,95.84768,43.05784,25.36759
sgpcmbeC1.c1,1998,0518:30:00,31 ,       0,51.42796,24.20908, 16.1053
sgpcmbeC1.c1,1998,0519:30:00,31 ,       0,8.235958,1.795237,2.041831
sgpcmbeC1.c1,1998,0520:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0521:30:00,31 ,       0,0.110398,0.003561,0.019828
sgpcmbeC1.c1,1998,0522:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0523:30:00,31 ,       0,       0,       0,       0