A few suggestions:
Don't mix ' and "
Use paste()
Don't include an extraneous ;
SymA<- "SPY"
Sym1<-
paste("http://ichart.finance.yahoo.com/table.csv?s=",SymA,"&ignore=.csv",sep="";)
Symbol<- read.csv(Sym1, stringsAsFactors=F)
On Jan 12, 2010, at 10:03 PM, B S wrote:
>
> Hi-
>
> I would like to be able to change the value of SymA below and download a file
> from the corresponding URL. Hardcoded, this line works fine:
>
> Symbol<-
> read.csv("http://ichart.finance.yahoo.com/table.csv?s=SPY&ignore=.csv";,
> stringsAsFactors=F)
>
> However, when I incorporate using a variable for the ticker, it no longer
> works.
>
> SymA<- "SPY"
> Sym1<-
> cat('http://ichart.finance.yahoo.com/table.csv?s=",SymA,"&ignore=.csv",sep="";;)
> Symbol<- read.csv(Sym1, stringsAsFactors=F)
>
> I know that the problem lies in the concatenation, but I've tried different
> variations of cat() and toString() (and others) with SymA and Sym1 but cannot
> seem to get a string together that will work. Would appreciate any
> suggestions for this simple problem??
>
> Thank you.
>
>
>
>
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