datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,06 0:30:00,18 ,       0,210.4198,22.74941,51.08127
sgpcmbeC1.c1,2001,06 1:30:00,18 ,0.055227, 84.0362,16.78202,22.41809
sgpcmbeC1.c1,2001,06 2:30:00,18 ,0.001716,179.6606,28.23769,56.00571
sgpcmbeC1.c1,2001,06 3:30:00,18 ,       0,179.4331,19.44538, 42.8121
sgpcmbeC1.c1,2001,06 4:30:00,17 ,       0,201.9664, 16.1514,48.06833
sgpcmbeC1.c1,2001,06 5:30:00,17 ,       0,138.9045,20.92407,39.09712
sgpcmbeC1.c1,2001,06 6:30:00,18 ,       0, 157.407,30.93543, 46.9075
sgpcmbeC1.c1,2001,06 7:30:00,20 ,       0,129.4535,26.98455,42.73842
sgpcmbeC1.c1,2001,06 8:30:00,22 ,       0,139.9484,18.68969,38.20918
sgpcmbeC1.c1,2001,06 9:30:00,22 ,       0, 146.939,32.81402,53.73849
sgpcmbeC1.c1,2001,0610:30:00,21 ,       0,149.0609,23.94771,41.75006
sgpcmbeC1.c1,2001,0611:30:00,21 ,0.308659, 145.128,22.15643,33.15184
sgpcmbeC1.c1,2001,0612:30:00,21 ,       0,99.86078,17.85741,25.45942
sgpcmbeC1.c1,2001,0613:30:00,21 ,0.108624,98.66328,18.97672,26.55314
sgpcmbeC1.c1,2001,0614:30:00,22 ,0.116079,86.16753,15.79539,23.77055
sgpcmbeC1.c1,2001,0615:30:00,22 ,0.418528,71.40482,13.21387,19.19212
sgpcmbeC1.c1,2001,0616:30:00,21 ,       0,131.0461,12.86535,30.25851
sgpcmbeC1.c1,2001,0617:30:00,21 ,       0,75.54938,8.922653,16.72211
sgpcmbeC1.c1,2001,0618:30:00,21 ,       0,96.00371,9.828648,21.70032
sgpcmbeC1.c1,2001,0619:30:00,21 ,0.055609,156.0074,11.76661,33.31483
sgpcmbeC1.c1,2001,0620:30:00,21 ,0.479072,176.0116,19.18254,41.86508
sgpcmbeC1.c1,2001,0621:30:00,19 ,       0,71.69122,11.84205,19.16991
sgpcmbeC1.c1,2001,0622:30:00,19 ,       0,65.11297,14.75998,19.29972
sgpcmbeC1.c1,2001,0623:30:00,18 ,       0,125.6759, 24.6193,37.45712