datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,07 0:30:00,31 ,       0,1.492913,0.091521,0.354784
sgpcmbeC1.c1,1998,07 1:30:00,31 ,       0,1.881419,0.113754,0.441379
sgpcmbeC1.c1,1998,07 2:30:00,31 ,       0,2.144284, 0.14916, 0.45255
sgpcmbeC1.c1,1998,07 3:30:00,31 ,       0,1.020061,0.077221,0.258078
sgpcmbeC1.c1,1998,07 4:30:00,31 ,       0,1.915898,0.108647,0.424794
sgpcmbeC1.c1,1998,07 5:30:00,31 ,0.978609,16.50585,8.453261,4.007681
sgpcmbeC1.c1,1998,07 6:30:00,31 ,1.860047,44.73269,14.90591,8.378789
sgpcmbeC1.c1,1998,07 7:30:00,31 ,1.765068,63.55353,17.62262,15.86384
sgpcmbeC1.c1,1998,07 8:30:00,31 ,4.195834, 73.0449,23.30372,20.07637
sgpcmbeC1.c1,1998,07 9:30:00,31 ,2.754784,110.0206, 26.3565,25.04457
sgpcmbeC1.c1,1998,0710:30:00,31 ,2.033354,155.6471,32.74602,33.84402
sgpcmbeC1.c1,1998,0711:30:00,31 ,1.491842,153.2767,39.70413,38.54011
sgpcmbeC1.c1,1998,0712:30:00,31 ,1.727633,120.7627,37.81625,32.59358
sgpcmbeC1.c1,1998,0713:30:00,31 ,2.297364,74.30036,26.79848, 22.2126
sgpcmbeC1.c1,1998,0714:30:00,31 ,1.338507,67.55022,23.29274,17.90883
sgpcmbeC1.c1,1998,0715:30:00,31 , 1.93711,65.76233,26.39379,21.29317
sgpcmbeC1.c1,1998,0716:30:00,31 ,3.834804,89.14562,20.65883,17.40159
sgpcmbeC1.c1,1998,0717:30:00,31 ,3.012194,46.82788,18.37819,11.94276
sgpcmbeC1.c1,1998,0718:30:00,31 ,2.675293,39.72229,17.39089,9.163796
sgpcmbeC1.c1,1998,0719:30:00,31 ,5.510835,22.29525,13.08041,3.760747
sgpcmbeC1.c1,1998,0720:30:00,31 ,       0,1.403581,0.045277,0.252091
sgpcmbeC1.c1,1998,0721:30:00,31 ,       0,1.209152,0.039005, 0.21717
sgpcmbeC1.c1,1998,0722:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0723:30:00,31 ,       0, 0.72656,0.023437,0.130494