Converting numeric type vector into a vector of strings

Question

I'm trying to convert this:

> j[1:5] 
NA06985 NA06991 NA06993 NA06994 NA07000

Into this:

c("NA06985","NA06991","NA06993", "NA06994", "NA07000")

I've tried using as.character but it gives me:

> as.character(j[1:5])
[1] "10" "10" "10" "10" "10"

Help please! -Josh

EDIT: Okay so I think I figured it out. After doing class(j) I found that it was of type data.frame. So I converted to as.matrix and it worked..hooray!

The answer to this will probably be fairly simple if you share the output of str(j). — joran
– joran, Commented Sep 26, 2011 at 4:27
Can you post exactly what you see when you type j[1:5] ? And what is class(j)? — mdsumner
– mdsumner, Commented Sep 26, 2011 at 4:28

verbamour · Accepted Answer · 2017-07-25 17:11:41Z

11

paste(j[1:5])

This works for strings, factors, numerics, pretty much anything that can be displayed.

answered Jul 25, 2017 at 17:11

verbamour

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JoshDG · Accepted Answer · 2011-09-26 15:43:34Z

1

Okay so I think I figured it out. After doing class(j) I found that it was of type data.frame. So I converted to as.matrix and it worked..hooray!

answered Sep 26, 2011 at 15:43

JoshDG

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Comments

Thierry · Accepted Answer · 2011-09-26 08:38:12Z

0

Assumming that j is a factor

> j <- factor(c("NA06985","NA06991","NA06993", "NA06994", "NA07000", "extra level"))
> j
[1] NA06985     NA06991     NA06993     NA06994     NA07000     extra level
Levels: extra level NA06985 NA06991 NA06993 NA06994 NA07000
> levels(j)[j[1:5]]
[1] "NA06985" "NA06991" "NA06993" "NA06994" "NA07000"

answered Sep 26, 2011 at 8:38

Thierry

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1 Comment

mdsumner Over a year ago

This is fine, but as.character(j[1:5]) would work as well for this case. It seems there is something different about j in the OP's question, or they are simply not reporting the issue accurately.

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