The U.S. Gasoline Market, 52 Yearly Observations, 1953-2004
Source: These data were compiled by Professor Chris Bell, Department of Economics, University of North Carolina, Asheville. Sources: www.bea.gov and www.bls.gov

    * Year = Year, 1953-2004,
    * GasExp = Total U.S. gasoline expenditure,
    * Pop = U.S. total population in thousands
    * GasP = Price index for gasoline,
    * Income = Per capita disposable income,
    * Pnc = Price index for new cars,
    * Puc = Price index for used cars,
    * Ppt = Price index for public transportation,
    * Pd = Aggregate price index for consumer durables,
    * Pn = Aggregate price index for consumer nondurables,
    * Ps = Aggregate price index for consumer services.



Year,GasExp,Pop,Gasp,Income,PNC,PUC,PPT,PD,PN,PS
   1953.00       7.40000       159565.       16.6680       8883.00   
   47.2000       26.7000       16.8000       37.7000       29.7000   
   19.4000   

以上为数据截取，
> read.table("C:/Users/forYear/Documents/R/工作/2014Homework1_datasets/Gasoline.txt", header = FALSE, sep = "", skip = 18)
>Error in scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings,  :
  line 3 did not have 5 elements

因为11个变量，在txt里分为了三行排列，所以不能使用上述命令，应该怎么解决这一个问题