datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,09 0:30:00,29 ,0.014827,0.148146,0.048222,0.028297
sgpcmbeC1.c1,2005,09 1:30:00,28 ,0.012475,0.064624,0.035268,0.015259
sgpcmbeC1.c1,2005,09 2:30:00,29 ,0.012408,0.282631,0.053386,0.050474
sgpcmbeC1.c1,2005,09 3:30:00,29 ,0.014947,0.115427,0.045739,0.022543
sgpcmbeC1.c1,2005,09 4:30:00,29 ,0.012171,0.117414,0.045664,0.026451
sgpcmbeC1.c1,2005,09 5:30:00,29 ,0.011397,0.091337,0.042113,0.021537
sgpcmbeC1.c1,2005,09 6:30:00,29 ,0.011928,0.234138, 0.04396,0.040546
sgpcmbeC1.c1,2005,09 7:30:00,29 , 0.01306,0.160791, 0.04599,0.034289
sgpcmbeC1.c1,2005,09 8:30:00,30 ,0.013763, 0.28031,0.051136,  0.0588
sgpcmbeC1.c1,2005,09 9:30:00,30 ,0.016903,0.125554,0.051204,0.026952
sgpcmbeC1.c1,2005,0910:30:00,29 ,0.019092,0.120869,0.044779,0.022963
sgpcmbeC1.c1,2005,0911:30:00,29 ,0.024673,0.109478,0.048088,0.018641
sgpcmbeC1.c1,2005,0912:30:00,29 ,0.025681, 0.17088,0.071487,0.033757
sgpcmbeC1.c1,2005,0913:30:00,28 ,0.018564,   0.101,0.061554, 0.02278
sgpcmbeC1.c1,2005,0914:30:00,29 ,0.012629,0.171685,0.069066,0.038745
sgpcmbeC1.c1,2005,0915:30:00,29 ,0.030799,0.220873,0.066456, 0.04136
sgpcmbeC1.c1,2005,0916:30:00,29 ,0.025644,0.127823,0.061014,0.027164
sgpcmbeC1.c1,2005,0917:30:00,29 ,0.023891,0.170545,0.057544,0.035734
sgpcmbeC1.c1,2005,0918:30:00,29 ,0.019199,0.160941,0.058677,0.039782
sgpcmbeC1.c1,2005,0919:30:00,29 , 0.01848,0.135503,0.055277,0.030378
sgpcmbeC1.c1,2005,0920:30:00,29 ,0.015567,0.233903, 0.05034,0.044415
sgpcmbeC1.c1,2005,0921:30:00,28 , 0.01732,0.277475,  0.0525, 0.05179
sgpcmbeC1.c1,2005,0922:30:00,29 ,0.015416, 0.27947,0.057639,0.054259
sgpcmbeC1.c1,2005,0923:30:00,29 ,0.021015,0.148501,0.059366,0.037201