R help - Jan 2013 - to check if a character string is in a group of character strings

Hello,

How can I judge if a string is in a group of string? For example, I would like
to have

if (subpool in pool){
}else{
}

Where
> pool = c("s1","s2")
> subpool = c("s1")
How can I write the "subpool in pool" right in R?

Thanks very much!

Cheers,

Rebecca


----------------------------------------------------------------------
This message, and any attachments, is for the intended r...{{dropped:5}}

On 13-01-23 11:14 AM, Yuan, Rebecca wrote:
> Hello,
>
> How can I judge if a string is in a group of string? For example, I would
like to have
>
> if (subpool in pool){
> }else{
> }
if (subpool %in% pool)

Duncan Murdoch
>
> Where
>
>> pool = c("s1","s2")
>> subpool = c("s1")
>
> How can I write the "subpool in pool" right in R?
>
> Thanks very much!
>
> Cheers,
>
> Rebecca
>
>
> ----------------------------------------------------------------------
> This message, and any attachments, is for the intended r...{{dropped:5}}
>
> ______________________________________________
> 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.
>

Not sure what you want this for, but work along the following:
> pool = c("s1","s2")
> subpool = c("s1")
> ifelse(pool==subpool,1,0)
[1] 1 0

Notice:
> pool2 = c("s2","s1")
> ifelse(pool2==subpool,1,0)
[1] 0 1

Etc.

Hope this helps.

Jos?


Jos? Iparraguirre
Chief Economist
Age UK



-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org]
On Behalf Of Yuan, Rebecca
Sent: 23 January 2013 16:15
To: R help
Subject: [R] to check if a character string is in a group of character strings

Hello,

How can I judge if a string is in a group of string? For example, I would like
to have

if (subpool in pool){
}else{
}

Where
> pool = c("s1","s2")
> subpool = c("s1")
How can I write the "subpool in pool" right in R?

Thanks very much!

Cheers,

Rebecca


----------------------------------------------------------------------
This message, and any attachments, is for the intended r...{{dropped:5}}

______________________________________________
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.

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Hello Duncan,

Thanks for this!

This works!

Best,

Rebecca

-----Original Message-----
From: Duncan Murdoch [mailto:murdoch.duncan at gmail.com] 
Sent: Wednesday, January 23, 2013 11:23 AM
To: Yuan, Rebecca
Cc: R help
Subject: Re: [R] to check if a character string is in a group of character
strings

On 13-01-23 11:14 AM, Yuan, Rebecca wrote:
> Hello,
>
> How can I judge if a string is in a group of string? For example, I would
like to have
>
> if (subpool in pool){
> }else{
> }
if (subpool %in% pool)

Duncan Murdoch
>
> Where
>
>> pool = c("s1","s2")
>> subpool = c("s1")
>
> How can I write the "subpool in pool" right in R?
>
> Thanks very much!
>
> Cheers,
>
> Rebecca
>
>
> ----------------------------------------------------------------------
> This message, and any attachments, is for the intended...{{dropped:12}}

I think you want %in%

subpool %in% pool
pool %in% subpool



ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek / Research Institute for Nature and
Forest
team Biometrie & Kwaliteitszorg / team Biometrics & Quality Assurance
Kliniekstraat 25
1070 Anderlecht
Belgium
+ 32 2 525 02 51
+ 32 54 43 61 85
Thierry.Onkelinx at inbo.be
www.inbo.be

To call in the statistician after the experiment is done may be no more than
asking him to perform a post-mortem examination: he may be able to say what the
experiment died of.
~ Sir Ronald Aylmer Fisher

The plural of anecdote is not data.
~ Roger Brinner

The combination of some data and an aching desire for an answer does not ensure
that a reasonable answer can be extracted from a given body of data.
~ John Tukey


-----Oorspronkelijk bericht-----
Van: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org]
Namens Yuan, Rebecca
Verzonden: woensdag 23 januari 2013 17:15
Aan: R help
Onderwerp: [R] to check if a character string is in a group of character strings

Hello,

How can I judge if a string is in a group of string? For example, I would like
to have

if (subpool in pool){
}else{
}

Where
> pool = c("s1","s2")
> subpool = c("s1")
How can I write the "subpool in pool" right in R?

Thanks very much!

Cheers,

Rebecca


----------------------------------------------------------------------
This message, and any attachments, is for the intended r...{{dropped:5}}

______________________________________________
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.
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