datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,07 0:30:00,31 ,       0,4.486542,0.274693,0.933292
sgpcmbeC1.c1,2001,07 1:30:00,31 ,       0,4.126709,0.255018,0.901316
sgpcmbeC1.c1,2001,07 2:30:00,31 ,       0,4.650451,0.402227,1.256635
sgpcmbeC1.c1,2001,07 3:30:00,31 ,       0,5.016881,0.427305,1.336699
sgpcmbeC1.c1,2001,07 4:30:00,31 ,       0,4.617737,0.422025,1.314433
sgpcmbeC1.c1,2001,07 5:30:00,31 ,0.573378,24.43155,9.038434,5.525826
sgpcmbeC1.c1,2001,07 6:30:00,31 ,31.46028,150.0223,106.4708,35.60879
sgpcmbeC1.c1,2001,07 7:30:00,31 ,65.72404,348.2132,272.7263,69.17194
sgpcmbeC1.c1,2001,07 8:30:00,31 ,119.2486,  538.66,432.0016,129.3887
sgpcmbeC1.c1,2001,07 9:30:00,31 ,105.6764, 704.162,603.9039,150.6121
sgpcmbeC1.c1,2001,0710:30:00,31 ,420.0412,885.8183,773.8882,102.2146
sgpcmbeC1.c1,2001,0711:30:00,31 ,644.5963,993.3292,877.0762,70.64526
sgpcmbeC1.c1,2001,0712:30:00,30 ,233.0796,1029.367, 848.711,  175.55
sgpcmbeC1.c1,2001,0713:30:00,31 ,293.3536,993.1101,811.7671,164.6034
sgpcmbeC1.c1,2001,0714:30:00,31 ,186.7976,870.2214,722.3403,192.2204
sgpcmbeC1.c1,2001,0715:30:00,31 ,117.3791,811.5225,601.6614,167.3938
sgpcmbeC1.c1,2001,0716:30:00,31 , 239.743,576.0277,479.8251,93.53461
sgpcmbeC1.c1,2001,0717:30:00,31 ,118.9973,375.1591,319.7207,56.96603
sgpcmbeC1.c1,2001,0718:30:00,31 ,16.37252,182.4728,144.1884, 34.9866
sgpcmbeC1.c1,2001,0719:30:00,31 ,0.055109, 30.5106,19.67533,7.359642
sgpcmbeC1.c1,2001,0720:30:00,31 ,       0,4.255639,0.437344,1.212208
sgpcmbeC1.c1,2001,0721:30:00,31 ,       0,5.187235,0.594354,1.580075
sgpcmbeC1.c1,2001,0722:30:00,31 ,       0,5.940933,0.629544,1.679427
sgpcmbeC1.c1,2001,0723:30:00,31 ,       0, 5.90697,0.627597,1.679339