datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,08 0:30:00,27 ,       0,91.14926,12.18071,18.98498
sgpcmbeC1.c1,1998,08 1:30:00,27 ,       0,77.93544,9.983686,17.39717
sgpcmbeC1.c1,1998,08 2:30:00,27 ,       0,247.2792,15.17656,46.94402
sgpcmbeC1.c1,1998,08 3:30:00,26 ,       0,21.56405,6.890505,6.849427
sgpcmbeC1.c1,1998,08 4:30:00,26 ,       0,25.17013,6.799379,6.736165
sgpcmbeC1.c1,1998,08 5:30:00,25 ,       0,57.47668,9.575375,12.02333
sgpcmbeC1.c1,1998,08 6:30:00,25 ,       0,29.51081,7.136422,8.159689
sgpcmbeC1.c1,1998,08 7:30:00,25 ,       0,  72.007,6.910066,14.23948
sgpcmbeC1.c1,1998,08 8:30:00,26 ,       0, 14.7854,4.971668,4.481931
sgpcmbeC1.c1,1998,08 9:30:00,27 ,       0,65.93085,11.38665,18.41165
sgpcmbeC1.c1,1998,0810:30:00,27 ,       0, 101.131,10.17845,19.41632
sgpcmbeC1.c1,1998,0811:30:00,27 ,       0,144.7583,15.65468,30.37891
sgpcmbeC1.c1,1998,0812:30:00,27 ,       0,162.8182,20.02233,34.12778
sgpcmbeC1.c1,1998,0813:30:00,26 ,       0,61.20654,10.95403,15.09013
sgpcmbeC1.c1,1998,0814:30:00,26 ,       0,134.0344,14.91087,29.90319
sgpcmbeC1.c1,1998,0815:30:00,26 ,       0,210.3906,24.19296,51.99428
sgpcmbeC1.c1,1998,0816:30:00,26 ,       0,117.5737, 15.4354,29.28577
sgpcmbeC1.c1,1998,0817:30:00,24 ,       0, 136.277,18.81849,36.73351
sgpcmbeC1.c1,1998,0818:30:00,26 ,       0,57.74437,7.388267,13.34608
sgpcmbeC1.c1,1998,0819:30:00,27 ,       0,149.2921,20.59329,42.48049
sgpcmbeC1.c1,1998,0820:30:00,27 ,       0, 118.708,13.34027,26.11728
sgpcmbeC1.c1,1998,0821:30:00,27 ,       0,63.51299,9.484919,15.86289
sgpcmbeC1.c1,1998,0822:30:00,27 ,       0,78.84629,13.31545,19.75441
sgpcmbeC1.c1,1998,0823:30:00,27 ,       0,370.1966, 24.2348,71.62944