用R语言整理格式为dataframe的数据：SLB, SLMH, SLLL等股票数据

SLB SLMH SLLL SDUL SSAT SRGF SSKS SBDM SLOC SLCL SLSI SLCF SLNI SLHW SLHB SCEC SADC 1 5 'A' 0.099 0.244 0.393 1.000 1.030 1.230 8.040 15.89 48.13 -99.00 0.12 6.75 -99.00 30.7 -99.00 2 15 'A' 0.108 0.253 0.396 0.850 0.880 1.250 6.800 17.49 47.51 -99.00 0.09 6.81 -99.00 26.9 -99.00 3 30 'AB' 0.122 0.267 0.400 0.700 0.700 1.280 5.190 19.84 46.46 -99.00 0.07 6.91 -99.00 26.0 -99.00 4 60 'BA' 0.135 0.279 0.404 0.500 0.570 1.330 3.330 22.13 45.36 -99.00 0.06 7.02 -99.00 27.2 -99.00 5 100 'B' 0.135 0.278 0.403 0.380 0.570 1.390 1.940 22.11 44.77 -99.00 0.05 7.17 -99.00 27.4 -99.00 6 200 'BC' 0.125 0.265 0.398 0.050 0.680 1.450 1.100 20.41 44.59 -99.00 0.05 7.35 -99.00 27.3 -99.00