Thanks all - I'm fairly new to R, so I was oblivious to the pros and cons of
using a data frame as opposed to a list! The 'get' command also seemed to work
successfully.
Thanks again,
Steve
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I would suggest avoiding the function ?assign inside a loop. I used top use
this until someone here kindly pointed out that it was much easier to catch
the data of interest in a list...
eg.
df.list <- vector("list", length(10))
for (i in 1:10)}
df.list[[i]]<-data.frame(arunoff_,table_year,_tem
well, the literal answer is that paste("arunoff_",table_year,"_temp")
is a character vector of length 1 so your indexing cannot work. What
you want is to index the data that corresponds to this variable name,
?get
But I should stress that this manipulation with assign and get seems
complete
I assume you need to use 'get' to retrieve the value:
table_year=1951
for (i in (paste("arunoff_",year,"_temp",sep=""))) {
assign(paste("arunoff_",table_year,
sep=""),get(paste("arunoff_",table_year,"_temp"))[c(10,7,9,5,4,12,1,3,2,8,11,6),])
table_year = table_year+1
}
Aren't you missing a sep='' in your last call to paste?
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org]
On Behalf Of Steve Murray
Sent: Wednesday, March 25, 2009 1:58 PM
To: r-help@r-project.org
Subject: [R] Manual sort in a for loop
Dear all,
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