datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,07 0:30:00,30 ,       0,0.070825,0.002361,0.012931
sgpcmbeC1.c1,2004,07 1:30:00,30 ,       0,0.266174,0.010104,  0.0487
sgpcmbeC1.c1,2004,07 2:30:00,30 ,       0,0.155398,0.006263,0.028784
sgpcmbeC1.c1,2004,07 3:30:00,30 ,       0,0.050351,0.001678,0.009193
sgpcmbeC1.c1,2004,07 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,07 5:30:00,30 ,       0,6.087422, 1.23927,1.690011
sgpcmbeC1.c1,2004,07 6:30:00,30 ,0.034582,112.3303,36.54301,34.90258
sgpcmbeC1.c1,2004,07 7:30:00,30 ,0.065277,295.7192,133.6427,106.9489
sgpcmbeC1.c1,2004,07 8:30:00,30 , 0.10529, 475.436,249.4589,176.3298
sgpcmbeC1.c1,2004,07 9:30:00,30 ,0.129845, 636.752, 326.554,240.2643
sgpcmbeC1.c1,2004,0710:30:00,30 ,0.105522,763.7375,453.6644,289.3433
sgpcmbeC1.c1,2004,0711:30:00,31 , 0.14637,837.8864,516.6132,304.0295
sgpcmbeC1.c1,2004,0712:30:00,31 ,0.254295,843.4548,559.6152,315.1675
sgpcmbeC1.c1,2004,0713:30:00,31 ,0.175034,844.7563,532.8004,303.2832
sgpcmbeC1.c1,2004,0714:30:00,31 ,0.078949,773.4622,457.5543, 266.917
sgpcmbeC1.c1,2004,0715:30:00,31 , 0.17421,642.4988,407.5175,215.5794
sgpcmbeC1.c1,2004,0716:30:00,31 ,0.156181,479.6451, 311.125,159.7675
sgpcmbeC1.c1,2004,0717:30:00,31 ,  0.0042,318.3808,193.3373,93.89421
sgpcmbeC1.c1,2004,0718:30:00,31 ,       0,121.6931,68.57146,41.75902
sgpcmbeC1.c1,2004,0719:30:00,31 ,       0,14.82319,5.013026,4.127608
sgpcmbeC1.c1,2004,0720:30:00,31 ,       0,0.004607,0.000168,0.000831
sgpcmbeC1.c1,2004,0721:30:00,31 ,       0,0.012124,0.000391,0.002178
sgpcmbeC1.c1,2004,0722:30:00,31 ,       0,0.108107,0.003487,0.019417
sgpcmbeC1.c1,2004,0723:30:00,31 ,       0,0.062669,0.002022,0.011256