datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,05 0:30:00,29 ,       0,0.162707, 0.00731,0.031255
sgpcmbeC1.c1,2007,05 1:30:00,29 ,       0,0.200382,0.022207,0.057972
sgpcmbeC1.c1,2007,05 2:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,05 3:30:00,29 ,       0,0.087473,0.006719,0.020807
sgpcmbeC1.c1,2007,05 4:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,05 5:30:00,29 ,       0,9.067349,2.650186,2.688611
sgpcmbeC1.c1,2007,05 6:30:00,29 , 0.11933,18.83241,7.334254,6.228211
sgpcmbeC1.c1,2007,05 7:30:00,29 ,0.179602,15.50024,7.860631,4.958948
sgpcmbeC1.c1,2007,05 8:30:00,29 ,1.338954,35.78931, 11.0481,8.955868
sgpcmbeC1.c1,2007,05 9:30:00,29 , 1.68678,40.20024,14.49328,11.12411
sgpcmbeC1.c1,2007,0510:30:00,29 ,1.700872, 44.8411,20.69139,14.95122
sgpcmbeC1.c1,2007,0511:30:00,29 ,1.062621,53.17947,19.42772,14.43808
sgpcmbeC1.c1,2007,0512:30:00,29 ,1.439673,56.47079,26.53854, 15.8675
sgpcmbeC1.c1,2007,0513:30:00,30 ,0.674341,51.59026,26.67336,14.97552
sgpcmbeC1.c1,2007,0514:30:00,30 ,2.551291,56.24963,27.53121,16.16008
sgpcmbeC1.c1,2007,0515:30:00,30 ,2.562289,53.27424,24.93175,15.07866
sgpcmbeC1.c1,2007,0516:30:00,30 ,2.027975,45.82043,22.03655,13.81662
sgpcmbeC1.c1,2007,0517:30:00,30 ,3.716926,33.33947,16.34367,8.513656
sgpcmbeC1.c1,2007,0518:30:00,30 ,0.961517, 19.9874,9.647834,5.933552
sgpcmbeC1.c1,2007,0519:30:00,30 ,       0,5.943314,2.224405,1.481654
sgpcmbeC1.c1,2007,0520:30:00,30 ,       0,0.003733,0.000124,0.000681
sgpcmbeC1.c1,2007,0521:30:00,30 ,       0,0.067633,0.002254,0.012348
sgpcmbeC1.c1,2007,0522:30:00,30 ,       0, 0.25321,0.014277,0.049168
sgpcmbeC1.c1,2007,0523:30:00,29 ,       0,0.062546,0.005451, 0.01481