datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,11 0:30:00,29 ,       0,4.108672,1.413287,1.730115
sgpcmbeC1.c1,2005,11 1:30:00,30 ,       0,4.085784,1.411887,1.662034
sgpcmbeC1.c1,2005,11 2:30:00,30 ,       0,3.868361,1.301048,1.623372
sgpcmbeC1.c1,2005,11 3:30:00,30 ,       0,3.960481,1.228509, 1.60833
sgpcmbeC1.c1,2005,11 4:30:00,30 ,       0,4.023187,1.218765,1.562773
sgpcmbeC1.c1,2005,11 5:30:00,30 ,       0,4.039427, 1.39388,1.637735
sgpcmbeC1.c1,2005,11 6:30:00,30 ,       0,3.737347,1.451354,1.453884
sgpcmbeC1.c1,2005,11 7:30:00,30 ,1.604224,78.51579,36.54997,19.91475
sgpcmbeC1.c1,2005,11 8:30:00,30 ,14.54226,262.5245, 178.497,58.86828
sgpcmbeC1.c1,2005,11 9:30:00,30 ,24.82428,435.4971,315.2128,102.0099
sgpcmbeC1.c1,2005,1110:30:00,30 ,54.23518,566.1113,438.5237,121.8382
sgpcmbeC1.c1,2005,1111:30:00,30 ,67.09104,642.8506,526.9323,119.3968
sgpcmbeC1.c1,2005,1112:30:00,30 ,92.43553, 660.551,531.9128,128.4112
sgpcmbeC1.c1,2005,1113:30:00,30 ,96.39494,655.1621,496.1699,121.3938
sgpcmbeC1.c1,2005,1114:30:00,30 , 93.5609,497.7784,391.4095,100.2932
sgpcmbeC1.c1,2005,1115:30:00,30 ,57.92988,340.9709,247.8042,74.01174
sgpcmbeC1.c1,2005,1116:30:00,30 ,27.13646,155.3282,95.57331,31.81692
sgpcmbeC1.c1,2005,1117:30:00,30 ,0.268602,16.02289,5.864735,3.436129
sgpcmbeC1.c1,2005,1118:30:00,30 ,       0,4.524994,1.377498,1.795585
sgpcmbeC1.c1,2005,1119:30:00,30 ,       0,4.591543,1.415031,1.786983
sgpcmbeC1.c1,2005,1120:30:00,30 ,       0,4.414102,1.405788, 1.72128
sgpcmbeC1.c1,2005,1121:30:00,30 ,       0, 4.56024,1.224401,1.701453
sgpcmbeC1.c1,2005,1122:30:00,30 ,       0,4.440364,1.258989,1.658041
sgpcmbeC1.c1,2005,1123:30:00,30 ,       0,4.374877,1.287227,1.623903