datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,05 0:30:00,31 ,       0,0.396052,0.034899,0.108673
sgpcmbeC1.c1,1997,05 1:30:00,31 ,       0, 1.10261,0.035568,0.198035
sgpcmbeC1.c1,1997,05 2:30:00,31 ,       0,0.530066,0.017099,0.095203
sgpcmbeC1.c1,1997,05 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,05 4:30:00,31 ,       0,0.869767,0.028057,0.156215
sgpcmbeC1.c1,1997,05 5:30:00,31 ,       0, 14.8526,8.240723,4.105828
sgpcmbeC1.c1,1997,05 6:30:00,31 ,6.247935,58.61731,17.55023,10.86928
sgpcmbeC1.c1,1997,05 7:30:00,31 ,2.796172,80.10791,22.44698,22.95198
sgpcmbeC1.c1,1997,05 8:30:00,31 ,2.296632, 84.4576,30.74443,26.24657
sgpcmbeC1.c1,1997,05 9:30:00,31 ,1.491974,101.0184,32.67794,30.36838
sgpcmbeC1.c1,1997,0510:30:00,30 ,0.930062,130.0601,40.47717,40.93278
sgpcmbeC1.c1,1997,0511:30:00,30 ,0.902732,147.1823,46.63937,40.72659
sgpcmbeC1.c1,1997,0512:30:00,30 ,1.290569,155.4599,50.15897,42.17998
sgpcmbeC1.c1,1997,0513:30:00,30 ,0.928818,146.3323,50.35552,42.21518
sgpcmbeC1.c1,1997,0514:30:00,30 ,0.967069,  119.32,38.00455, 35.6117
sgpcmbeC1.c1,1997,0515:30:00,30 ,1.145875,85.66137,26.11248,22.88655
sgpcmbeC1.c1,1997,0516:30:00,30 ,1.651136,173.1505, 33.3949,37.03433
sgpcmbeC1.c1,1997,0517:30:00,30 ,2.251021,57.49023,22.70651,19.14188
sgpcmbeC1.c1,1997,0518:30:00,30 ,7.783943,35.62574,18.29293,6.899157
sgpcmbeC1.c1,1997,0519:30:00,30 ,1.741395,18.11101,8.419578,3.631219
sgpcmbeC1.c1,1997,0520:30:00,30 ,       0,0.526777,0.017559,0.096176
sgpcmbeC1.c1,1997,0521:30:00,30 ,       0,1.208666,0.040289,0.220671
sgpcmbeC1.c1,1997,0522:30:00,30 ,       0,1.458871,0.048629,0.266352
sgpcmbeC1.c1,1997,0523:30:00,30 ,       0,0.492065,0.026505,0.103876