datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,07 0:30:00,27 ,       0,83.22161,4.876017,15.98379
sgpcmbeC1.c1,2005,07 1:30:00,27 ,       0,29.14363,3.573799,6.536776
sgpcmbeC1.c1,2005,07 2:30:00,27 ,       0,38.25507,4.283939,8.184385
sgpcmbeC1.c1,2005,07 3:30:00,27 ,       0,52.10645,6.959356, 13.1542
sgpcmbeC1.c1,2005,07 4:30:00,27 ,       0,1302.933,54.03421,249.7562
sgpcmbeC1.c1,2005,07 5:30:00,25 ,       0,47.05989,5.622948,10.28307
sgpcmbeC1.c1,2005,07 6:30:00,25 ,       0, 50.0148,6.681376,13.24012
sgpcmbeC1.c1,2005,07 7:30:00,25 ,       0,149.5088,11.18992,30.31586
sgpcmbeC1.c1,2005,07 8:30:00,26 ,       0, 125.505,9.281743,25.10733
sgpcmbeC1.c1,2005,07 9:30:00,26 ,       0,91.78491,7.901182,18.48567
sgpcmbeC1.c1,2005,0710:30:00,27 ,       0,85.78813, 10.3347,19.23452
sgpcmbeC1.c1,2005,0711:30:00,28 ,       0,145.3189,15.43901,36.08937
sgpcmbeC1.c1,2005,0712:30:00,28 ,       0,141.1581,20.79697,40.01612
sgpcmbeC1.c1,2005,0713:30:00,28 ,       0,250.8182,33.55707,64.33504
sgpcmbeC1.c1,2005,0714:30:00,28 ,       0,557.5172,48.19633,113.6705
sgpcmbeC1.c1,2005,0715:30:00,28 ,       0,860.3992,80.82128,195.3129
sgpcmbeC1.c1,2005,0716:30:00,27 ,       0,455.5873,50.58578,113.5816
sgpcmbeC1.c1,2005,0717:30:00,26 ,       0,1905.053,101.1067,374.2525
sgpcmbeC1.c1,2005,0718:30:00,26 ,       0,3669.205,174.8961,720.1906
sgpcmbeC1.c1,2005,0719:30:00,25 ,       0,809.4412,45.87581,161.5331
sgpcmbeC1.c1,2005,0720:30:00,25 ,       0,2869.677,129.9049,572.0448
sgpcmbeC1.c1,2005,0721:30:00,27 ,       0,1317.402, 54.0972,252.7578
sgpcmbeC1.c1,2005,0722:30:00,27 ,       0,397.3883,17.42487, 76.0812
sgpcmbeC1.c1,2005,0723:30:00,27 ,       0,27.13384,3.328383,6.511243