datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,06 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,06 1:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,06 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,06 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,06 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,06 5:30:00,30 ,       0,35.39146,12.98528,7.627167
sgpcmbeC1.c1,1999,06 6:30:00,30 ,0.861683,124.1788,58.79599,30.91056
sgpcmbeC1.c1,1999,06 7:30:00,30 ,3.037549,202.5447,108.2636,49.79173
sgpcmbeC1.c1,1999,06 8:30:00,30 ,15.93061, 313.396,174.1423,81.04244
sgpcmbeC1.c1,1999,06 9:30:00,30 , 43.7662, 377.956,227.6608,97.85611
sgpcmbeC1.c1,1999,0610:30:00,30 ,1.569741,460.9719, 248.721,116.6219
sgpcmbeC1.c1,1999,0611:30:00,30 ,6.022959,499.8888,273.0165,136.2697
sgpcmbeC1.c1,1999,0612:30:00,30 ,11.70422,513.5739,275.7242,149.3939
sgpcmbeC1.c1,1999,0613:30:00,30 , 33.8155,593.6212,279.9973,146.9271
sgpcmbeC1.c1,1999,0614:30:00,30 ,19.53198,469.9755,262.9248,130.2552
sgpcmbeC1.c1,1999,0615:30:00,30 ,4.246429,399.4836,216.6831,103.7918
sgpcmbeC1.c1,1999,0616:30:00,30 ,2.353033,327.1569,193.5421,75.47808
sgpcmbeC1.c1,1999,0617:30:00,30 ,2.136497,242.8662,128.1688,54.85215
sgpcmbeC1.c1,1999,0618:30:00,30 ,       0,139.2828,66.77245,28.62097
sgpcmbeC1.c1,1999,0619:30:00,30 ,       0,38.88615,16.07598,7.954456
sgpcmbeC1.c1,1999,0620:30:00,30 ,       0,1.575508,0.052517,0.287647
sgpcmbeC1.c1,1999,0621:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0622:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0623:30:00,30 ,       0,       0,       0,       0