datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2000,04 0:30:00,30 ,       0,0.228093,0.013129,0.048805
sgpcmbeC1.c1,2000,04 1:30:00,30 ,       0,0.114676,0.007153,0.025539
sgpcmbeC1.c1,2000,04 2:30:00,30 ,       0,0.264309,0.009615,0.048305
sgpcmbeC1.c1,2000,04 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,04 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,04 5:30:00,30 ,       0,2.298996,0.475781, 0.70245
sgpcmbeC1.c1,2000,04 6:30:00,30 ,0.109437,14.66278,7.902767,4.529838
sgpcmbeC1.c1,2000,04 7:30:00,30 ,0.185873, 20.7127,10.46715,4.495732
sgpcmbeC1.c1,2000,04 8:30:00,30 ,4.058571,33.95931,13.38738,7.716991
sgpcmbeC1.c1,2000,04 9:30:00,30 , 2.46644,39.34539,15.46515,11.81235
sgpcmbeC1.c1,2000,0410:30:00,30 , 3.04071,40.65165, 13.0031,11.98263
sgpcmbeC1.c1,2000,0411:30:00,30 ,1.750327,51.07666,12.66848,12.73343
sgpcmbeC1.c1,2000,0412:30:00,30 , 0.42192,55.16725, 12.7895,14.94158
sgpcmbeC1.c1,2000,0413:30:00,30 ,1.080593,44.89881,14.12358,13.62314
sgpcmbeC1.c1,2000,0414:30:00,30 , 0.90467,58.60919,15.83075,15.41398
sgpcmbeC1.c1,2000,0415:30:00,30 ,       0,62.88673,17.69907,15.54219
sgpcmbeC1.c1,2000,0416:30:00,30 ,0.335091,33.67712, 13.5592,8.318642
sgpcmbeC1.c1,2000,0417:30:00,30 ,0.279531,28.24458,12.97457,7.202301
sgpcmbeC1.c1,2000,0418:30:00,30 ,       0,15.64425, 8.81773,4.405388
sgpcmbeC1.c1,2000,0419:30:00,30 ,       0,0.932305,0.114032,0.243754
sgpcmbeC1.c1,2000,0420:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0421:30:00,30 ,       0,0.153858,0.005129, 0.02809
sgpcmbeC1.c1,2000,0422:30:00,30 ,       0,0.354208,0.022362,0.085244
sgpcmbeC1.c1,2000,0423:30:00,30 ,       0,       0,       0,       0