datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,04 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,04 1:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,04 2:30:00,30 ,       0,0.166892,0.005563, 0.03047
sgpcmbeC1.c1,1998,04 3:30:00,30 ,       0,0.113404, 0.00378,0.020705
sgpcmbeC1.c1,1998,04 4:30:00,30 ,       0,0.009251,0.000308,0.001689
sgpcmbeC1.c1,1998,04 5:30:00,30 ,       0,0.531818,0.065877,0.148192
sgpcmbeC1.c1,1998,04 6:30:00,30 ,0.012896,38.42005,18.27042,13.91561
sgpcmbeC1.c1,1998,04 7:30:00,30 ,0.020612,84.80262,40.43023,24.66142
sgpcmbeC1.c1,1998,04 8:30:00,30 ,0.045369,148.7402,53.37889,39.49594
sgpcmbeC1.c1,1998,04 9:30:00,30 ,0.147926,203.7172,49.29387,46.41965
sgpcmbeC1.c1,1998,0410:30:00,30 ,       0,282.9016, 69.7282,74.65836
sgpcmbeC1.c1,1998,0411:30:00,30 ,0.173606,286.1774, 75.4028,91.00895
sgpcmbeC1.c1,1998,0412:30:00,30 ,0.104002,331.3556,85.85223,119.7803
sgpcmbeC1.c1,1998,0413:30:00,30 ,0.054895,324.1846,85.86225,101.9383
sgpcmbeC1.c1,1998,0414:30:00,30 ,0.141421,330.1537,88.54525,102.2733
sgpcmbeC1.c1,1998,0415:30:00,30 ,0.132941,208.0786,69.66561,63.95109
sgpcmbeC1.c1,1998,0416:30:00,30 ,0.015463,165.1721,59.59644,46.97195
sgpcmbeC1.c1,1998,0417:30:00,30 ,       0,100.4156,48.10975,30.31385
sgpcmbeC1.c1,1998,0418:30:00,30 ,       0,37.27554,17.17137,14.42222
sgpcmbeC1.c1,1998,0419:30:00,30 ,       0,1.072146,0.150215,0.282743
sgpcmbeC1.c1,1998,0420:30:00,30 ,       0,0.044688, 0.00149,0.008159
sgpcmbeC1.c1,1998,0421:30:00,30 ,       0,0.078477,0.005147,0.019591
sgpcmbeC1.c1,1998,0422:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0423:30:00,30 ,       0,0.413654,0.013871,0.075508