datastream, year, month, tod,n, min, max, mean, std twpcmbeC2.c1,2001,01 0:30:00,31 ,442.4014,458.5351,451.3483,3.408745 twpcmbeC2.c1,2001,01 1:30:00,31 ,440.6039, 459.094,450.4732, 3.85004 twpcmbeC2.c1,2001,01 2:30:00,31 ,439.4746,458.3353,449.3199,3.816375 twpcmbeC2.c1,2001,01 3:30:00,31 ,439.5991,455.3941,448.3952,3.608595 twpcmbeC2.c1,2001,01 4:30:00,31 ,437.5285,455.7877,447.4003,4.010989 twpcmbeC2.c1,2001,01 5:30:00,31 ,435.6413,456.2014,446.8324,4.333438 twpcmbeC2.c1,2001,01 6:30:00,31 ,434.6349,455.6573,446.4497,4.357887 twpcmbeC2.c1,2001,01 7:30:00,31 ,439.0124,456.1167,449.8608, 3.83287 twpcmbeC2.c1,2001,01 8:30:00,31 ,450.1685,470.6151,463.9645,4.169853 twpcmbeC2.c1,2001,01 9:30:00,31 ,462.9817,492.3214,482.0503,5.785619 twpcmbeC2.c1,2001,0110:30:00,31 ,470.8474,520.7847,498.7641,8.659365 twpcmbeC2.c1,2001,0111:30:00,31 ,479.5688, 538.676,512.0534,11.15943 twpcmbeC2.c1,2001,0112:30:00,30 ,481.4762,548.0244,521.4584,13.26895 twpcmbeC2.c1,2001,0113:30:00,30 , 473.756,555.8859,523.9198,15.76387 twpcmbeC2.c1,2001,0114:30:00,29 ,488.6747,544.8173,519.1367,13.40741 twpcmbeC2.c1,2001,0115:30:00,29 ,488.7305,535.3408,514.0683,10.51819 twpcmbeC2.c1,2001,0116:30:00,29 ,481.5159,523.3782,501.5999,9.357732 twpcmbeC2.c1,2001,0117:30:00,30 ,475.6174, 500.236,486.3498,6.506654 twpcmbeC2.c1,2001,0118:30:00,31 , 455.009,481.1287,468.9484,4.665786 twpcmbeC2.c1,2001,0119:30:00,31 , 453.357,468.3412,459.4032,3.133986 twpcmbeC2.c1,2001,0120:30:00,31 ,450.5877, 464.571,456.5233, 2.89645 twpcmbeC2.c1,2001,0121:30:00,31 ,447.5252,464.7997,454.7806,3.433547 twpcmbeC2.c1,2001,0122:30:00,31 ,444.5789,462.0852, 453.404,3.245172 twpcmbeC2.c1,2001,0123:30:00,31 ,443.7727,461.4546,452.3499,3.385658