datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,07 0:30:00,23 ,0.018064,0.119095,0.043577,0.023113
sgpcmbeC1.c1,1999,07 1:30:00,24 ,0.016811,0.130425,0.044041,0.027931
sgpcmbeC1.c1,1999,07 2:30:00,24 ,0.023397,0.208011,0.063905,  0.0489
sgpcmbeC1.c1,1999,07 3:30:00,24 ,0.022111,0.178881,0.051784,0.033527
sgpcmbeC1.c1,1999,07 4:30:00,24 ,0.022922,0.174465,0.049483,0.037328
sgpcmbeC1.c1,1999,07 5:30:00,24 ,0.019346,0.159425,0.046838, 0.03195
sgpcmbeC1.c1,1999,07 6:30:00,24 , 0.01692,0.179516,0.050642, 0.03755
sgpcmbeC1.c1,1999,07 7:30:00,25 ,0.019758,0.258589,0.048936,0.046808
sgpcmbeC1.c1,1999,07 8:30:00,28 ,0.020692,0.110394, 0.03877,0.021249
sgpcmbeC1.c1,1999,07 9:30:00,29 ,0.020395, 0.16279,0.043546,0.028044
sgpcmbeC1.c1,1999,0710:30:00,29 ,0.027327,0.140496,0.057902,0.027391
sgpcmbeC1.c1,1999,0711:30:00,28 ,0.036222, 0.14304,0.072552,0.026585
sgpcmbeC1.c1,1999,0712:30:00,26 ,0.041895,0.138149,0.070454,0.023853
sgpcmbeC1.c1,1999,0713:30:00,26 ,0.033153,0.256881,0.078931, 0.04304
sgpcmbeC1.c1,1999,0714:30:00,25 ,0.029149,0.149486,0.075844,0.032144
sgpcmbeC1.c1,1999,0715:30:00,23 ,0.034741,0.136398,0.076109,0.029076
sgpcmbeC1.c1,1999,0716:30:00,23 ,0.027016,0.137245,0.067478, 0.02174
sgpcmbeC1.c1,1999,0717:30:00,23 ,0.030979,0.167718,0.062322,0.029403
sgpcmbeC1.c1,1999,0718:30:00,24 ,0.017815,0.303417,0.062917,0.055083
sgpcmbeC1.c1,1999,0719:30:00,24 ,0.016768,0.189387,0.050566,0.035349
sgpcmbeC1.c1,1999,0720:30:00,23 ,0.016637,0.104601,0.045032,0.023279
sgpcmbeC1.c1,1999,0721:30:00,23 ,0.014837,0.078369,0.040125,0.014939
sgpcmbeC1.c1,1999,0722:30:00,23 ,0.017855, 0.12797,0.041235, 0.02348
sgpcmbeC1.c1,1999,0723:30:00,23 ,0.015757,0.233969,0.049959,0.044891