datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,06 0:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,06 1:30:00,27 ,       0,0.889203,0.052402,0.195414
sgpcmbeC1.c1,1998,06 2:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,06 3:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,06 4:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,06 5:30:00,28 ,2.226351,21.02722,13.17682,3.898296
sgpcmbeC1.c1,1998,06 6:30:00,28 ,4.980378,35.11049,14.61561,8.280472
sgpcmbeC1.c1,1998,06 7:30:00,28 ,2.908278,61.63814,22.52349,19.31057
sgpcmbeC1.c1,1998,06 8:30:00,28 ,1.628324,90.64309,25.17197,26.18616
sgpcmbeC1.c1,1998,06 9:30:00,28 ,1.555636, 76.4482,29.99685,25.65898
sgpcmbeC1.c1,1998,0610:30:00,28 ,1.379541,134.7892,31.40494,37.58941
sgpcmbeC1.c1,1998,0611:30:00,28 ,1.635973,164.5728,34.33455,41.95675
sgpcmbeC1.c1,1998,0612:30:00,28 ,1.322346,106.9149,30.33551,31.33312
sgpcmbeC1.c1,1998,0613:30:00,27 ,1.030456,132.7005,32.93996,37.85148
sgpcmbeC1.c1,1998,0614:30:00,27 ,1.312187,136.2607,31.66519,36.85578
sgpcmbeC1.c1,1998,0615:30:00,27 ,1.874735, 146.306, 31.8985,36.01108
sgpcmbeC1.c1,1998,0616:30:00,27 ,2.383487,114.7612,28.79959,28.02768
sgpcmbeC1.c1,1998,0617:30:00,27 ,2.449476,52.06363, 18.0053,14.62368
sgpcmbeC1.c1,1998,0618:30:00,26 ,5.680222,56.53518,17.67104,12.43899
sgpcmbeC1.c1,1998,0619:30:00,26 ,2.177518, 23.7986,13.00759,5.037019
sgpcmbeC1.c1,1998,0620:30:00,26 ,       0,4.082361,0.173961,0.801823
sgpcmbeC1.c1,1998,0621:30:00,26 ,       0,0.416205,0.016008,0.081625
sgpcmbeC1.c1,1998,0622:30:00,26 ,       0, 1.96362,0.075524,0.385098
sgpcmbeC1.c1,1998,0623:30:00,27 ,       0,0.514256,0.019047,0.098969