datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,11 0:30:00,30 ,       0,1.406094, 0.16259,0.425321
sgpcmbeC1.c1,2004,11 1:30:00,30 ,       0,1.482146,0.127507,0.373124
sgpcmbeC1.c1,2004,11 2:30:00,30 ,       0,1.332173,  0.1026,0.308191
sgpcmbeC1.c1,2004,11 3:30:00,30 ,       0,1.640472,0.134178,0.423724
sgpcmbeC1.c1,2004,11 4:30:00,30 ,       0,1.037327,0.054741,0.215922
sgpcmbeC1.c1,2004,11 5:30:00,30 ,       0, 1.16432,0.056104, 0.22972
sgpcmbeC1.c1,2004,11 6:30:00,30 ,       0,2.578855, 0.45206,0.874793
sgpcmbeC1.c1,2004,11 7:30:00,30 , 3.37552,24.09039,10.90689,6.474503
sgpcmbeC1.c1,2004,11 8:30:00,30 , 1.29908,37.95846,15.11759,9.167621
sgpcmbeC1.c1,2004,11 9:30:00,30 ,1.765528,81.95865,19.79823,18.29978
sgpcmbeC1.c1,2004,1110:30:00,30 ,1.151206,66.47676, 24.9474, 21.2907
sgpcmbeC1.c1,2004,1111:30:00,30 ,0.361625,80.09256,27.35629,19.59528
sgpcmbeC1.c1,2004,1112:30:00,30 , 0.49185,81.84306, 28.8499,20.40349
sgpcmbeC1.c1,2004,1113:30:00,30 ,0.687922,61.47067,22.87894,18.65664
sgpcmbeC1.c1,2004,1114:30:00,30 ,0.902831,82.16574, 24.5773,20.07901
sgpcmbeC1.c1,2004,1115:30:00,30 ,1.706791,57.47264,16.63251,13.04109
sgpcmbeC1.c1,2004,1116:30:00,30 ,4.231446,33.43974, 13.7574,7.208394
sgpcmbeC1.c1,2004,1117:30:00,30 ,       0,16.65544,4.852242,4.304524
sgpcmbeC1.c1,2004,1118:30:00,30 ,       0, 1.58155,0.237726,0.474342
sgpcmbeC1.c1,2004,1119:30:00,30 ,       0,1.132707,0.109185, 0.29868
sgpcmbeC1.c1,2004,1120:30:00,30 ,       0,1.522379,0.232297,0.443992
sgpcmbeC1.c1,2004,1121:30:00,30 ,       0,1.242945,0.134834,0.368599
sgpcmbeC1.c1,2004,1122:30:00,30 ,       0,0.847545,0.086843,0.217111
sgpcmbeC1.c1,2004,1123:30:00,30 ,       0,1.348066,0.258287,0.468398