datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,05 0:30:00,30 ,0.012751,0.228475,0.054527,0.042044
sgpcmbeC1.c1,2005,05 1:30:00,30 , 0.01151,0.267985, 0.05823,0.056388
sgpcmbeC1.c1,2005,05 2:30:00,29 ,0.015126,0.400579,0.054262,  0.0696
sgpcmbeC1.c1,2005,05 3:30:00,29 ,0.012804,0.233496,0.057651,0.049692
sgpcmbeC1.c1,2005,05 4:30:00,29 ,0.014963,0.142786,0.041602,0.030284
sgpcmbeC1.c1,2005,05 5:30:00,29 ,0.016775,0.283882,0.047268,0.049846
sgpcmbeC1.c1,2005,05 6:30:00,30 ,0.010509,0.213772,0.045269,0.038633
sgpcmbeC1.c1,2005,05 7:30:00,30 ,0.013702,0.319636, 0.05691,0.070172
sgpcmbeC1.c1,2005,05 8:30:00,30 ,0.016466,0.251479,0.048087,0.052155
sgpcmbeC1.c1,2005,05 9:30:00,29 ,0.017508,0.109554,0.045414,0.022456
sgpcmbeC1.c1,2005,0510:30:00,30 ,0.016858,0.295917, 0.05535,0.052703
sgpcmbeC1.c1,2005,0511:30:00,31 ,0.019071,0.280479,0.058245, 0.04793
sgpcmbeC1.c1,2005,0512:30:00,31 ,0.016782,0.250689,0.067925, 0.04859
sgpcmbeC1.c1,2005,0513:30:00,31 ,0.018486, 0.14577, 0.06222,0.034152
sgpcmbeC1.c1,2005,0514:30:00,31 ,0.015971,0.192649,0.069509,0.046238
sgpcmbeC1.c1,2005,0515:30:00,30 ,0.017729,0.192566,0.072298,0.046082
sgpcmbeC1.c1,2005,0516:30:00,30 ,0.015069,0.156537,0.063292,0.035417
sgpcmbeC1.c1,2005,0517:30:00,30 ,0.018747,0.295608,0.068971,0.064457
sgpcmbeC1.c1,2005,0518:30:00,30 ,0.015864, 0.27939,0.059229,0.053516
sgpcmbeC1.c1,2005,0519:30:00,30 ,0.013787,0.245702,0.062666,0.051444
sgpcmbeC1.c1,2005,0520:30:00,30 ,0.013031,0.240338,0.059108,0.051179
sgpcmbeC1.c1,2005,0521:30:00,30 ,0.013598,0.157303,0.048866,0.030374
sgpcmbeC1.c1,2005,0522:30:00,30 ,0.013207,0.327846,0.049751,0.057424
sgpcmbeC1.c1,2005,0523:30:00,30 ,0.011393,0.282387,0.050061,0.049321