datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,01 0:30:00,24 ,       0,185.0378,19.05771,42.86908
sgpcmbeC1.c1,2006,01 1:30:00,24 ,       0,354.1854,27.49628, 78.4719
sgpcmbeC1.c1,2006,01 2:30:00,23 ,       0,217.9681,20.42666,54.12049
sgpcmbeC1.c1,2006,01 3:30:00,23 ,       0,300.2112,20.66566, 64.6659
sgpcmbeC1.c1,2006,01 4:30:00,23 ,       0,155.9732,11.54693,33.53935
sgpcmbeC1.c1,2006,01 5:30:00,23 ,       0,224.6792,14.65217,47.40443
sgpcmbeC1.c1,2006,01 6:30:00,23 ,       0,64.55332,6.655908,15.17033
sgpcmbeC1.c1,2006,01 7:30:00,23 ,       0,45.97619,7.690653,15.06181
sgpcmbeC1.c1,2006,01 8:30:00,23 ,       0,  78.064,8.080342,19.40414
sgpcmbeC1.c1,2006,01 9:30:00,25 ,       0,130.0099,7.041245,25.87412
sgpcmbeC1.c1,2006,0110:30:00,25 ,       0,133.0007,7.641896,26.58695
sgpcmbeC1.c1,2006,0111:30:00,25 ,       0, 97.4136,10.96445,27.19456
sgpcmbeC1.c1,2006,0112:30:00,25 ,       0, 245.469,20.15606,56.99899
sgpcmbeC1.c1,2006,0113:30:00,24 ,       0,166.3358,15.90785,39.68941
sgpcmbeC1.c1,2006,0114:30:00,24 ,       0,181.6211,12.65486,37.55327
sgpcmbeC1.c1,2006,0115:30:00,24 ,       0,111.2878,7.661913,23.16808
sgpcmbeC1.c1,2006,0116:30:00,24 ,       0, 40.5493,5.916208,12.03218
sgpcmbeC1.c1,2006,0117:30:00,24 ,       0,54.03826,6.471946,14.16794
sgpcmbeC1.c1,2006,0118:30:00,24 ,       0,62.56715,9.017526,17.99291
sgpcmbeC1.c1,2006,0119:30:00,24 ,       0,132.3979,15.86183,35.35233
sgpcmbeC1.c1,2006,0120:30:00,24 ,       0,160.0937, 15.4394,37.11368
sgpcmbeC1.c1,2006,0121:30:00,24 ,       0,161.9419,  16.687, 40.2796
sgpcmbeC1.c1,2006,0122:30:00,24 ,       0,228.4697,23.86156,56.58417
sgpcmbeC1.c1,2006,0123:30:00,24 , 0.00348,389.9766,30.13198,83.03867