datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,08 0:30:00,31 ,       0,184.4361,15.64095,42.62033
sgpcmbeC1.c1,2002,08 1:30:00,30 ,       0,114.1062, 8.76823,23.91222
sgpcmbeC1.c1,2002,08 2:30:00,30 ,       0,112.8877,14.76279,28.37375
sgpcmbeC1.c1,2002,08 3:30:00,29 ,       0,164.0215,18.33211,41.62179
sgpcmbeC1.c1,2002,08 4:30:00,30 ,       0,223.2329, 22.6319,53.43816
sgpcmbeC1.c1,2002,08 5:30:00,30 ,       0,246.1624,28.08943,64.86943
sgpcmbeC1.c1,2002,08 6:30:00,28 ,       0,146.8484,9.118514,27.68302
sgpcmbeC1.c1,2002,08 7:30:00,28 ,       0,119.1758,6.897431,22.54022
sgpcmbeC1.c1,2002,08 8:30:00,27 ,       0,29.82218,4.226037,6.950704
sgpcmbeC1.c1,2002,08 9:30:00,30 ,       0,76.22326,12.40934,21.61101
sgpcmbeC1.c1,2002,0810:30:00,30 ,       0,224.9242,14.65421,44.99603
sgpcmbeC1.c1,2002,0811:30:00,30 ,       0,198.4965, 22.7368,46.93494
sgpcmbeC1.c1,2002,0812:30:00,31 ,       0,479.5087,43.78372,100.7094
sgpcmbeC1.c1,2002,0813:30:00,31 ,       0,177.9752,20.09129,37.53959
sgpcmbeC1.c1,2002,0814:30:00,31 ,       0,184.1477,22.68251, 43.5598
sgpcmbeC1.c1,2002,0815:30:00,30 ,       0,207.1903,20.14543,41.50363
sgpcmbeC1.c1,2002,0816:30:00,31 ,       0,329.3707,26.07043,65.82689
sgpcmbeC1.c1,2002,0817:30:00,31 ,       0,214.9639,18.76814,53.55839
sgpcmbeC1.c1,2002,0818:30:00,31 ,       0,126.0607,10.36127,27.66512
sgpcmbeC1.c1,2002,0819:30:00,31 ,       0,56.10315,5.663817,12.43834
sgpcmbeC1.c1,2002,0820:30:00,31 ,       0,29.16101,3.779828,6.041865
sgpcmbeC1.c1,2002,0821:30:00,31 ,       0,165.4036,12.09523,36.46894
sgpcmbeC1.c1,2002,0822:30:00,31 ,       0,155.3324,10.62565,33.37547
sgpcmbeC1.c1,2002,0823:30:00,31 ,       0,238.0035,28.68432,66.44995