datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,09 0:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,09 1:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,09 2:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,09 3:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,09 4:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,09 5:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,09 6:30:00,30 , 1.52982,12.10361,7.137379,3.136924
sgpcmbeC1.c1,2005,09 7:30:00,30 ,4.795813,55.37157,40.53462,14.56142
sgpcmbeC1.c1,2005,09 8:30:00,30 ,17.19351,100.5653,78.62958,20.97711
sgpcmbeC1.c1,2005,09 9:30:00,30 ,42.60722,128.9443,106.8029,21.87698
sgpcmbeC1.c1,2005,0910:30:00,30 ,77.42422,148.8948,128.5637,19.55981
sgpcmbeC1.c1,2005,0911:30:00,30 ,91.16945,157.8685, 140.897,16.10806
sgpcmbeC1.c1,2005,0912:30:00,30 ,59.11526,160.6118,140.1965,22.98812
sgpcmbeC1.c1,2005,0913:30:00,30 ,48.98112,154.3358,133.3669,26.61595
sgpcmbeC1.c1,2005,0914:30:00,30 ,18.37387,139.4636,122.3014,23.12457
sgpcmbeC1.c1,2005,0915:30:00,30 ,30.72167,121.7467,97.69653,25.59518
sgpcmbeC1.c1,2005,0916:30:00,30 ,10.99846,87.28116,66.50368, 22.1433
sgpcmbeC1.c1,2005,0917:30:00,30 ,3.986465,49.58911,32.96827, 12.6379
sgpcmbeC1.c1,2005,0918:30:00,30 ,0.112315,11.64049, 4.24643,3.609217
sgpcmbeC1.c1,2005,0919:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,0920:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,0921:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,0922:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,0923:30:00,26 ,       0,       0,       0,       0