datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,09 0:30:00,29 ,       0,77.49014,7.993217,16.19207
sgpcmbeC1.c1,1998,09 1:30:00,28 ,       0,117.3681,13.83929,29.28265
sgpcmbeC1.c1,1998,09 2:30:00,29 ,       0,106.5556,15.44055,29.70477
sgpcmbeC1.c1,1998,09 3:30:00,28 ,       0,273.3424,23.16209,54.98738
sgpcmbeC1.c1,1998,09 4:30:00,27 ,       0,68.17175, 11.8816,19.76749
sgpcmbeC1.c1,1998,09 5:30:00,28 ,       0,136.3498,12.99809,29.44797
sgpcmbeC1.c1,1998,09 6:30:00,28 ,       0,204.9036,19.50624,45.66869
sgpcmbeC1.c1,1998,09 7:30:00,28 ,       0,252.9264,23.79469,55.89423
sgpcmbeC1.c1,1998,09 8:30:00,28 ,       0, 177.357,13.04235,34.46897
sgpcmbeC1.c1,1998,09 9:30:00,28 ,       0, 81.9412,9.919563,21.97425
sgpcmbeC1.c1,1998,0910:30:00,28 ,       0, 139.442,15.26736,32.27096
sgpcmbeC1.c1,1998,0911:30:00,28 ,       0,132.5995,18.28432,33.84729
sgpcmbeC1.c1,1998,0912:30:00,28 ,       0,108.7512,18.87631, 27.7551
sgpcmbeC1.c1,1998,0913:30:00,28 ,       0,209.5581,24.60539,46.71517
sgpcmbeC1.c1,1998,0914:30:00,25 ,       0,194.0646,32.82771,50.96706
sgpcmbeC1.c1,1998,0915:30:00,25 ,       0,291.0073,31.16445,61.65682
sgpcmbeC1.c1,1998,0916:30:00,25 ,       0,157.3283,28.82751,49.75187
sgpcmbeC1.c1,1998,0917:30:00,25 ,       0,241.7498,23.88338,51.02731
sgpcmbeC1.c1,1998,0918:30:00,29 ,       0, 194.769,21.82103,45.17685
sgpcmbeC1.c1,1998,0919:30:00,29 ,       0,211.8511,14.75355, 41.8234
sgpcmbeC1.c1,1998,0920:30:00,29 ,       0,216.1581,15.99783,  42.305
sgpcmbeC1.c1,1998,0921:30:00,29 ,       0,92.72433,11.09695,22.86589
sgpcmbeC1.c1,1998,0922:30:00,29 ,       0,94.38835,6.740869,17.83532
sgpcmbeC1.c1,1998,0923:30:00,29 ,       0,105.3766,9.630662,25.45126