datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,11 0:30:00,30 , 0.52823, 18.6278,2.152433,3.407982
sgpcmbeC1.c1,2007,11 1:30:00,30 ,0.539432,25.29215,2.673816,4.845662
sgpcmbeC1.c1,2007,11 2:30:00,30 ,0.514894, 18.5484,2.620932,   3.718
sgpcmbeC1.c1,2007,11 3:30:00,30 ,0.431496,21.70592,2.549556,4.244437
sgpcmbeC1.c1,2007,11 4:30:00,30 ,0.598664,6.304546,1.683921,1.467687
sgpcmbeC1.c1,2007,11 5:30:00,30 ,0.497557,9.283613,1.905148,1.797795
sgpcmbeC1.c1,2007,11 6:30:00,30 ,0.498433,27.96366,3.186747,5.469001
sgpcmbeC1.c1,2007,11 7:30:00,30 ,0.457756,11.43153,2.118086,2.466528
sgpcmbeC1.c1,2007,11 8:30:00,30 ,0.628818,9.430221,2.229026,2.019302
sgpcmbeC1.c1,2007,11 9:30:00,29 ,0.783422, 20.0829,4.014078,4.101638
sgpcmbeC1.c1,2007,1110:30:00,29 ,1.084866,13.06985,4.096692,3.396724
sgpcmbeC1.c1,2007,1111:30:00,29 ,0.727797,22.36584,3.995847,4.389643
sgpcmbeC1.c1,2007,1112:30:00,29 ,0.716837,26.99681,4.339561,5.976382
sgpcmbeC1.c1,2007,1113:30:00,30 ,0.563891,16.76045,3.236105,3.665521
sgpcmbeC1.c1,2007,1114:30:00,30 ,0.677252,16.04572, 2.70944,3.051587
sgpcmbeC1.c1,2007,1115:30:00,30 ,0.685263,25.39597,3.242682,5.838587
sgpcmbeC1.c1,2007,1116:30:00,30 ,0.539679,13.04231, 3.12723,3.276235
sgpcmbeC1.c1,2007,1117:30:00,30 ,0.455329,21.55585,3.526608,4.471839
sgpcmbeC1.c1,2007,1118:30:00,30 ,0.420861,18.25527,2.646327,3.333354
sgpcmbeC1.c1,2007,1119:30:00,30 ,0.539248, 19.8611, 3.86049,4.986014
sgpcmbeC1.c1,2007,1120:30:00,29 ,0.487866,17.75157,3.801369,5.199065
sgpcmbeC1.c1,2007,1121:30:00,30 ,0.438463,28.03376,3.704241,5.580722
sgpcmbeC1.c1,2007,1122:30:00,30 ,0.547817,11.90278,2.226422,2.448346
sgpcmbeC1.c1,2007,1123:30:00,30 ,0.344061,19.69564,2.559688, 3.62941