datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,07 0:30:00,26 , 0.01751,0.129139,0.046613,0.026682
sgpcmbeC1.c1,2005,07 1:30:00,26 ,0.014671,0.133186,0.045877,0.027232
sgpcmbeC1.c1,2005,07 2:30:00,27 ,0.019809,0.203084,0.054523,0.044523
sgpcmbeC1.c1,2005,07 3:30:00,25 ,0.003059,0.115892,0.050994,0.025293
sgpcmbeC1.c1,2005,07 4:30:00,27 ,0.004884,0.143136,0.048132,0.036491
sgpcmbeC1.c1,2005,07 5:30:00,24 ,0.015026,0.245054,0.053585,0.055727
sgpcmbeC1.c1,2005,07 6:30:00,24 ,0.015601,0.082238,0.035513,0.016933
sgpcmbeC1.c1,2005,07 7:30:00,25 ,  0.0139,0.121361,0.047382, 0.02883
sgpcmbeC1.c1,2005,07 8:30:00,28 , 0.01925,0.142149,0.045624,0.031261
sgpcmbeC1.c1,2005,07 9:30:00,28 ,0.018822,0.116519,0.049012,0.022946
sgpcmbeC1.c1,2005,0710:30:00,28 ,0.012721,0.159613,0.059017,0.030282
sgpcmbeC1.c1,2005,0711:30:00,28 ,0.021023, 0.12329,0.064946,0.023779
sgpcmbeC1.c1,2005,0712:30:00,27 ,0.015847,0.202894,0.084306,0.046274
sgpcmbeC1.c1,2005,0713:30:00,28 ,0.002562, 0.20438,0.086025,0.050158
sgpcmbeC1.c1,2005,0714:30:00,26 , 0.03866,0.153267,  0.0937,0.029878
sgpcmbeC1.c1,2005,0715:30:00,26 ,0.038378,0.199501,0.092997,0.032926
sgpcmbeC1.c1,2005,0716:30:00,26 ,0.008498,0.144899,0.082106,0.030535
sgpcmbeC1.c1,2005,0717:30:00,25 ,0.036099,0.147243,0.072254,0.026324
sgpcmbeC1.c1,2005,0718:30:00,26 ,0.018525,0.163238, 0.06173,0.034804
sgpcmbeC1.c1,2005,0719:30:00,27 ,0.020221,0.223497,0.073925,0.056468
sgpcmbeC1.c1,2005,0720:30:00,28 ,0.013502,0.253773,0.054791,0.049797
sgpcmbeC1.c1,2005,0721:30:00,26 ,0.014847,0.220577,0.058534,0.045519
sgpcmbeC1.c1,2005,0722:30:00,27 ,0.001729,0.106301,0.046249,0.023069
sgpcmbeC1.c1,2005,0723:30:00,26 ,0.012258,0.127412,0.051872,0.027733