datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,09 0:30:00,30 ,  0.4956, 2.26711,1.196862, 0.48131
sgpcmbeC1.c1,2002,09 1:30:00,30 ,0.314422,5.078606,1.473496, 1.06703
sgpcmbeC1.c1,2002,09 2:30:00,30 ,0.296824,4.539671,1.520217,0.916356
sgpcmbeC1.c1,2002,09 3:30:00,30 ,0.469141, 2.77301,1.058521,0.487716
sgpcmbeC1.c1,2002,09 4:30:00,30 ,0.375994,2.312884,  1.1168,0.543634
sgpcmbeC1.c1,2002,09 5:30:00,30 ,0.361304,2.212984,1.010397,0.505529
sgpcmbeC1.c1,2002,09 6:30:00,30 ,0.308706,4.930181, 2.33839,1.267621
sgpcmbeC1.c1,2002,09 7:30:00,30 ,0.850471,8.363724, 5.16805,1.918411
sgpcmbeC1.c1,2002,09 8:30:00,30 ,0.765924,10.44339,5.904164,1.927103
sgpcmbeC1.c1,2002,09 9:30:00,30 ,2.103735,7.991512,5.426285,1.482159
sgpcmbeC1.c1,2002,0910:30:00,30 ,2.351783,8.813516,4.464006, 1.23502
sgpcmbeC1.c1,2002,0911:30:00,30 ,2.143404,8.932268,3.949265,1.844997
sgpcmbeC1.c1,2002,0912:30:00,30 ,1.466602,7.267071,3.218799,1.689363
sgpcmbeC1.c1,2002,0913:30:00,30 ,1.209421,9.011155,3.051588,1.992253
sgpcmbeC1.c1,2002,0914:30:00,30 ,0.979901,9.390833,3.130509,2.150865
sgpcmbeC1.c1,2002,0915:30:00,30 ,1.774947,9.157678,3.275638,1.588301
sgpcmbeC1.c1,2002,0916:30:00,30 ,0.777014,8.448628,3.677519,1.777359
sgpcmbeC1.c1,2002,0917:30:00,30 , 0.81588,8.153765,4.430554, 1.99151
sgpcmbeC1.c1,2002,0918:30:00,30 ,0.994024, 12.5223,5.563099,2.169604
sgpcmbeC1.c1,2002,0919:30:00,30 ,0.646722,7.739484,2.623881, 1.66378
sgpcmbeC1.c1,2002,0920:30:00,30 ,0.599777,3.387515,1.537678,0.817953
sgpcmbeC1.c1,2002,0921:30:00,30 ,0.576909,5.557015,1.455317, 0.95931
sgpcmbeC1.c1,2002,0922:30:00,30 ,0.732255,4.248888,1.714187,0.886728
sgpcmbeC1.c1,2002,0923:30:00,30 ,0.410111,4.588018, 1.24205,0.901374