On 17/05/2010 9:07 AM, APOLLOCHEROKEE wrote:
> Dear Sir or Madam: Hi,sorry for disturbing you. Currently, I'm a
> master student, and my lecturer didn't teach us anything about how to use R.
> But the assignment is all about R. So even a very stupid error,I still can't
> tell. So please forgive my innocence.
>
You should ask your instructor for help with your assignment, not post
to this list. As the posting guide says, R-help is not intended for
classroom homework.
Duncan Murdoch
> The following is the requirement of my assignment
> you will read in the data> > uscpi <-
> read.table("C:/Users/APOLLO/Desktop/ECC4660/A2/uscpi.csv",header=T,sep=",")>
> > # Now compute a variable called ss, short for subscript, which you> # can
> use to index your variables, which will be useful for differencing> > ss <-
> length(uscpi$year)> > # Compute what Julie Smith would refer to as the "1
> year-ahead consumer> # price index" as simply the log of the price ratio
> between now and next> # year's observation> > inf <-
> log(uscpi$usdcpi2000[2:ss]/uscpi$usdcpi2000[1:(ss-1)])> > # You can take a
> look at the data with the following code> >
> plot(uscpi$year[2:ss],inf,type="b",ylim=c(0,0.15))error in xy.coords(x, y,
> xlabel, ylabel, log) : 'x' and 'y' lengths differ
>
> Could you please tell me what's wrong with it? I have attached my data in
> this assignment.
> Thank you very much
> Best regards
> _________________________________________________________________
>
>
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