datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,01 0:30:00,30 ,0.072273,449.9639,60.73951,100.4056
sgpcmbeC1.c1,1998,01 1:30:00,30 , 0.00123,456.3261,60.02295,101.4933
sgpcmbeC1.c1,1998,01 2:30:00,30 ,0.042725,559.3172,55.90915, 109.659
sgpcmbeC1.c1,1998,01 3:30:00,30 ,0.038178,727.3344,62.98963,138.6481
sgpcmbeC1.c1,1998,01 4:30:00,30 ,0.118127, 459.721,56.98821,97.13128
sgpcmbeC1.c1,1998,01 5:30:00,30 ,0.026517,281.8485,53.73556,  80.109
sgpcmbeC1.c1,1998,01 6:30:00,30 ,0.254561,409.0449,53.79534,92.54781
sgpcmbeC1.c1,1998,01 7:30:00,30 ,0.142835,420.2812,70.48732,108.7878
sgpcmbeC1.c1,1998,01 8:30:00,31 , 0.02397,727.6668,85.03071, 148.551
sgpcmbeC1.c1,1998,01 9:30:00,31 ,0.000408,352.9677,75.38706,105.5696
sgpcmbeC1.c1,1998,0110:30:00,30 ,       0,1053.297,91.52102,196.8349
sgpcmbeC1.c1,1998,0111:30:00,30 ,       0,715.2139,79.93086,140.0938
sgpcmbeC1.c1,1998,0112:30:00,28 ,       0,298.5643,  67.815,86.96274
sgpcmbeC1.c1,1998,0113:30:00,27 ,0.106365,  223.95,63.13292,70.36586
sgpcmbeC1.c1,1998,0114:30:00,26 ,1.133381,235.3977,56.72263, 68.0781
sgpcmbeC1.c1,1998,0115:30:00,24 ,0.692842,314.1117,73.36779,84.68435
sgpcmbeC1.c1,1998,0116:30:00,26 ,1.840097,403.5481, 67.9493,93.87166
sgpcmbeC1.c1,1998,0117:30:00,30 ,1.048133,460.2088,64.39689, 100.578
sgpcmbeC1.c1,1998,0118:30:00,31 ,0.386256,421.5833, 69.2342,102.9417
sgpcmbeC1.c1,1998,0119:30:00,31 , 0.04895,314.5254,60.69104,78.36948
sgpcmbeC1.c1,1998,0120:30:00,31 ,0.002116,208.6753,52.29854,64.94722
sgpcmbeC1.c1,1998,0121:30:00,31 ,       0,248.2445,59.41009,78.37921
sgpcmbeC1.c1,1998,0122:30:00,31 ,       0,441.1189,73.36499,105.7128
sgpcmbeC1.c1,1998,0123:30:00,31 ,0.191201,448.5482,73.81556,107.0275