[R] Converting Factor to Vector

[Patrick Burns]

Using 'str' to see what you have is excellent practice
(and very helpful to show in messages to R-help).
However, you need to look at the output you get
more carefully.  You have a data frame that contains
a factor.  So:

as.character(repo[, 1])

should do what you want.


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")

Gundala Viswanath wrote:
> Hi Bill,
>
> However with as.character it fail show the actual strings.
>
> It gives this:
>
>   
>> new_repo <- as.character(repo)
>> str(new_repo)
>>     
>  chr "1:32267"
>   
>> print(new_repo)
>>     
> [1] "1:32267"
>
> Instead of
>
>   
>>> str(new_repo)
>>>       
>> chr [1:100] "AAA" "AAT" "AAC" "AAG" "ATA" "ATT"...
>>
>>     
>>> print(new_repo)
>>>       
>> [1] "AAA" "AAT" "AAC" "AAG" "ATA" "ATT"...
>>     
>
>
> - Gundala Viswanath
> Jakarta - Indonesia
>
>
>
> On Tue, Jan 13, 2009 at 2:40 PM,  <Bill.Venables at csiro.au> wrote:
>   
>> as.character()
>>
>>
>> Bill Venables
>> http://www.cmis.csiro.au/bill.venables/
>>
>>
>> -----Original Message-----
>> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of Gundala Viswanath
>> Sent: Tuesday, 13 January 2009 3:25 PM
>> To: r-help at stat.math.ethz.ch
>> Subject: [R] Converting Factor to Vector
>>
>> Hi all,
>>
>> How can I convert factor like this:
>>
>>     
>>> str(repo)
>>>       
>> 'data.frame':   1000 obs. of  1 variable:
>>  $ AAA: Factor w/ 1000 levels "AAT","AAC",..: 1 2 3 4 5 6 7 8 9 10 ...
>>     
>>> print(repo)
>>>       
>> AAA
>> 1  AAA
>> 2  AAT
>> 3  AAC
>> ...
>>
>> into to simple vector
>>
>>     
>>> str(new_repo)
>>>       
>> chr [1:100] "AAA" "AAT" "AAC" "AAG" "ATA" "ATT"...
>>
>>     
>>> print(new_repo)
>>>       
>> [1] "AAA" "AAT" "AAC" "AAG" "ATA" "ATT"...
>>
>>
>> I tried as.vector(), but it remains the same factor.
>>
>> - Gundala Viswanath
>> Jakarta - Indonesia
>>
>> ______________________________________________
>> R-help at 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.
>>
>>     
>
> ______________________________________________
> R-help at 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.
>
>
>