Access odd-named object returned by getSymbols

问题

I\'m downloading data from Yahoo using quantmod:

> getSymbols(\"HNZ-A.TO\")
[1] \"HNZ-A.TO\"
Warning message:
In download.file(paste(yahoo.URL, \"s=\", Symbols.name, \"&a=\", from.m,  :
  downloaded length 70893 != reported length 200

The file shows up in my R workspace. The data is there and I can use edit to see the object, but I can\'t use the object. For example:

> head(HNZ-A.TO)
Error in head(HNZ - A.TO) : object \'HNZ\' not found

What can I do to use this object?

回答1:

Use back-ticks or get.

HNZA.TO <- `HNZ-A.TO`
HNZA.TO <- get("HNZ-A.TO")

Or you could avoid this all-together by setting auto.assign=FALSE in your call to getSymbols.

HNZA.TO <- getSymbols("HNZ-A.TO", auto.assign=FALSE)

You might also want to adjust the column names, via:

colnames(HNZA.TO) <- make.names(colnames(HNZA.TO))

回答2:

HNZ <- getSymbols('HNZ-A.TO', auto.assign=FALSE) per the help page for getSymbols.

回答3:

Another alternative is to setSymbolLookup to tell getSymbols to use a different Symbol in the query.

> setSymbolLookup(HNZ=list(src="yahoo", name="HNZ-A.TO"))
> getSymbols("HNZ")
[1] "HNZ"

回答4:

Ok, but so you cannot get the quotes. Maybe another solution could be:

HNZ<-read.csv("http://ichart.finance.yahoo.com/table.csv?s=HNZ-A.TO&ignore=.csv", stringsAsFactors=F)

head(HNZ)

The advantage is that it is still easy to get the columns you want easily.

来源：https://stackoverflow.com/questions/14760622/access-odd-named-object-returned-by-getsymbols

标签

quantmod