datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,07 0:30:00,31 ,       0, 1.36437,0.251589,0.401712
sgpcmbeC1.c1,2003,07 1:30:00,31 ,       0,2.312588,0.255438,0.544094
sgpcmbeC1.c1,2003,07 2:30:00,31 ,       0, 1.56866,  0.2448,0.410057
sgpcmbeC1.c1,2003,07 3:30:00,31 ,       0,1.426128,0.158589,0.344691
sgpcmbeC1.c1,2003,07 4:30:00,31 ,       0,1.504688,0.224996,0.391322
sgpcmbeC1.c1,2003,07 5:30:00,31 ,0.309162,9.079231,2.814639,2.605092
sgpcmbeC1.c1,2003,07 6:30:00,31 ,0.032949,118.4927,55.08788,33.94798
sgpcmbeC1.c1,2003,07 7:30:00,31 ,0.240662,298.9374,178.7106,78.89099
sgpcmbeC1.c1,2003,07 8:30:00,31 ,0.524246,475.1937,328.8825,139.3812
sgpcmbeC1.c1,2003,07 9:30:00,31 , 2.79184,641.2555,461.4186, 191.906
sgpcmbeC1.c1,2003,0710:30:00,31 ,47.31311,777.1526,606.7287,191.1046
sgpcmbeC1.c1,2003,0711:30:00,31 ,11.07153,871.1321,659.9114,219.8237
sgpcmbeC1.c1,2003,0712:30:00,31 ,16.11591,915.8942,681.4849,231.4012
sgpcmbeC1.c1,2003,0713:30:00,31 ,34.86346,890.1785,638.6248,219.4613
sgpcmbeC1.c1,2003,0714:30:00,31 ,96.27704,813.2952, 571.604,174.6634
sgpcmbeC1.c1,2003,0715:30:00,31 ,31.37036,684.1044,476.3241,165.7681
sgpcmbeC1.c1,2003,0716:30:00,31 ,2.035751,504.7646,357.0023,123.6014
sgpcmbeC1.c1,2003,0717:30:00,31 ,0.750763,302.0985,200.8939,84.99258
sgpcmbeC1.c1,2003,0718:30:00,31 ,0.989334,126.1641,77.58073,31.10133
sgpcmbeC1.c1,2003,0719:30:00,31 ,0.124351,13.83719,6.254689,4.278583
sgpcmbeC1.c1,2003,0720:30:00,31 ,       0,1.688271, 0.21236, 0.43213
sgpcmbeC1.c1,2003,0721:30:00,31 ,       0, 1.53936,0.183701,0.346131
sgpcmbeC1.c1,2003,0722:30:00,31 ,       0,1.191869,0.210262,0.341877
sgpcmbeC1.c1,2003,0723:30:00,31 ,       0,1.507578,0.257192,0.465302