Dear list,
I have a character vector such vec.names<- c("a", "b")
It happens that I have also two R objects called "a" and "b"
that I would
like to merge. Is it possible to
do something like cbind(vec.names[1], vec.names[2]) ending up with the same
result as cbind(a,b)
Bellow is a reproducible example of what I need to to:
dat<- data.frame(A=seq(1,5), B=seq(6,10))
vec.names<- c("a", "b")
for(i in 1:ncol(dat))
{
tab<- dat[,i]-1
assign(vec.names[i], tab)
}
cbind(vec.names[1], vec.names[2])
[,1] [,2]
[1,] "a" "b"
But I was looking after the following result (using vec.names):
cbind(a,b)
a b
[1,] 0 5
[2,] 1 6
[3,] 2 7
[4,] 3 8
[5,] 4 9
Thanks in advance
Jonas
[[alternative HTML version deleted]]
Not tested:
Instead of:
cbind(vec.names[1], vec.names[2])
cbind(get(vec.names[1]), get(vec.names[2]))
-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org]
On Behalf Of jonas garcia
Sent: Tuesday, September 01, 2009 12:53 PM
To: r-help at r-project.org
Subject: [R] cbind objects using character vectors
Dear list,
I have a character vector such vec.names<- c("a", "b")
It happens that I have also two R objects called "a" and "b"
that I would
like to merge. Is it possible to
do something like cbind(vec.names[1], vec.names[2]) ending up with the same
result as cbind(a,b)
Bellow is a reproducible example of what I need to to:
dat<- data.frame(A=seq(1,5), B=seq(6,10))
vec.names<- c("a", "b")
for(i in 1:ncol(dat))
{
tab<- dat[,i]-1
assign(vec.names[i], tab)
}
cbind(vec.names[1], vec.names[2])
[,1] [,2]
[1,] "a" "b"
But I was looking after the following result (using vec.names):
cbind(a,b)
a b
[1,] 0 5
[2,] 1 6
[3,] 2 7
[4,] 3 8
[5,] 4 9
Thanks in advance
Jonas
[[alternative HTML version deleted]]
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Try this:> sapply(vec.names, get)But for this example, you don't need for, try:> dat - 1On Tue, Sep 1, 2009 at 2:52 PM, jonas garcia <garcia.jonas80@googlemail.com>wrote:> Dear list, > > > > I have a character vector such vec.names<- c("a", "b") > > It happens that I have also two R objects called "a" and "b" that I would > like to merge. Is it possible to > > do something like cbind(vec.names[1], vec.names[2]) ending up with the same > result as cbind(a,b) > > > > Bellow is a reproducible example of what I need to to: > > > > dat<- data.frame(A=seq(1,5), B=seq(6,10)) > > vec.names<- c("a", "b") > > for(i in 1:ncol(dat)) > > { > > tab<- dat[,i]-1 > > assign(vec.names[i], tab) > > } > > > > cbind(vec.names[1], vec.names[2]) > > [,1] [,2] > > [1,] "a" "b" > > > > > > But I was looking after the following result (using vec.names): > > > > cbind(a,b) > > a b > > [1,] 0 5 > > [2,] 1 6 > > [3,] 2 7 > > [4,] 3 8 > > [5,] 4 9 > > > > > > Thanks in advance > > > > Jonas > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. >-- Henrique Dallazuanna Curitiba-Paraná-Brasil 25° 25' 40" S 49° 16' 22" O [[alternative HTML version deleted]]