Message-ID: <49AFF3C1.6040308@pburns.seanet.com>
Date: 2009-03-05T15:46:09Z
From: Patrick Burns
Subject: character string as object name
In-Reply-To: <AAD1951F-DF63-435B-888F-87652B839DFB@gmail.com>
Does the first item on page 52 of 'The R Inferno'
explain it for you? If not, can you give some
hints about how to improve the explanation?
Patrick Burns
patrick at burns-stat.com
+44 (0)20 8525 0696
http://www.burns-stat.com
(home of "The R Inferno" and "A Guide for the Unwilling S User")
Fuchs Ira wrote:
> Can someone please tell me why the following (last line) doesn't work
> (as I expect it to :-)
>
> library(quantmod)
> a = getSymbols("MSFT",from="2009-3-01")
> a
> MSFT
> eval(as.name(a))
> MSFT$MSFT.Adjusted
> b=paste(a,'$MSFT.Adjusted',sep='')
> b
> eval(as.name(b))
>
> Why does this last line not work the way the earlier eval does?
>
> Thanks.
>
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>