datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,03 0:30:00,31 ,       0, 0.16429,0.011668, 0.04079
sgpcmbeC1.c1,1998,03 1:30:00,31 ,       0,0.200633,0.013913,0.043447
sgpcmbeC1.c1,1998,03 2:30:00,31 ,       0,0.149363, 0.02022,0.043732
sgpcmbeC1.c1,1998,03 3:30:00,31 ,       0,0.183702,0.009791, 0.03464
sgpcmbeC1.c1,1998,03 4:30:00,31 ,       0,0.042337,0.001445,0.007602
sgpcmbeC1.c1,1998,03 5:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,03 6:30:00,31 ,       0,5.500412,1.326006,1.640724
sgpcmbeC1.c1,1998,03 7:30:00,30 ,       0,26.01751,8.121537,6.577927
sgpcmbeC1.c1,1998,03 8:30:00,30 ,1.002276,25.10284,10.07036,6.263963
sgpcmbeC1.c1,1998,03 9:30:00,30 , 1.95008,40.61792,11.27409,10.31083
sgpcmbeC1.c1,1998,0310:30:00,31 ,0.788974,46.10672,13.03637, 12.6143
sgpcmbeC1.c1,1998,0311:30:00,31 ,1.045848, 45.8417,12.81208,12.36286
sgpcmbeC1.c1,1998,0312:30:00,31 ,0.685167, 40.7453,12.35813,14.08315
sgpcmbeC1.c1,1998,0313:30:00,30 , 2.04261,58.26619,14.10989,17.27216
sgpcmbeC1.c1,1998,0314:30:00,31 ,1.019648,48.10751,11.55197,11.43362
sgpcmbeC1.c1,1998,0315:30:00,30 ,1.136142,53.69436,10.61317, 11.4131
sgpcmbeC1.c1,1998,0316:30:00,31 ,0.652187,29.39973,10.17283,6.972036
sgpcmbeC1.c1,1998,0317:30:00,31 ,0.575766,21.53347,10.47325,6.685259
sgpcmbeC1.c1,1998,0318:30:00,31 ,       0,10.42755,3.969878,3.034729
sgpcmbeC1.c1,1998,0319:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0320:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0321:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0322:30:00,31 ,       0,0.149017,0.008692, 0.03173
sgpcmbeC1.c1,1998,0323:30:00,31 ,       0,0.198444, 0.01175,0.042026