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wasn
2011 Mar 12
3
pass character vector in instrument field of get.hist.quote function
...possible.
I have a data frame of stock ticker symbols which I store into R space from
a txt file as follows:
tickers <- read.csv("stocks.txt", header=FALSE, sep=",")
tickers <- tickers[1] / the tickers are stored in the first column
> tickers
V1
1 BCSI
2 WBSN
3 NTAP
4 FFIV
5 SU
> is.vector(tickers)
[1] FALSE
>
> is.data.frame(tickers)
[1] TRUE
I tried to do the following without success.
stockdata <- data.frame()
stockdata <- coredata(get.hist.quote(instruments=tickers,
start="2011-01-01", end="2011-01-31"...