Hi
On 01/02/2014 04:04 PM, arun wrote:
Hi,
Try ?match
b[match(d,a)]
#[1] "Joe" "Bob" "Dick"
Or use 'a' to put names on 'b':
> names(b) <- a
> b
A B C D E
"Tom" "Dick" "Harry" "Bob" "Joe"
Then subset by names:
> b[d]
E D B
"Joe" "Bob" "Dick"
Cheers,
H.
A.K.
I have three vectors as follows:
a <- c('A','B','C','D','E')
b <- c('Tom','Dick','Harry','Bob','Joe')
d <- c('E','D','B')
Subsetting b by using d on a, with b[a %in% d], gives the names in the order
they appear in b:
b[a %in% d]
[1] "Dick" "Bob" "Joe"
But I'd like them to show in the order in d, as "Joe" "Bob" "Dick". What is the
easy way to do this?
Thanks.
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Hervé Pagès
Program in Computational Biology
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______________________________________________
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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.
