[R] Remove double quotation marks

[Lisa]

Your script works well. Thank you very mcuh.

Lisa



Nutter, Benjamin wrote:
> 
> It seems from your example that you're assuming all of the vectors have
> the same length.  If this is the case, then a data.frame might be your
> friend.
> 
>> df <- data.frame(
>     v1 = c(0, 1, 0),
>     v2 = c(1, 1, 0),
>     v3 = c(2, 1, 2),
>     v4 = c(2, 2, 1),
>     v5 = c(0, 1, 1) )
> 
>> x <- 5
> 
>> get.var <- c("v1", "v2", paste("v", x, sep=""))
> 
>> df[, get.var]
> 
> Or, if you know your variables in the data.frame will be named
> sequentially
> 
>> df[, c(1, 2, x)]
> 
> 
> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org]
> On Behalf Of Lisa
> Sent: Tuesday, December 29, 2009 3:55 PM
> To: r-help at r-project.org
> Subject: Re: [R] Remove double quotation marks
> 
> 
> Thank you for your help. But here I just want to combine some vectors by
> column based on the numbers determined by other R script. 
> 
> For example, I have five vectors:
> 
> v1 <- c(0, 1, 0)
> v2 <- c(1, 1, 0)
> v3 <- c(2, 1, 2)
> v4 <- c(2, 2, 1)
> v5 <- c(0, 1, 1)
> 
> If I am going to combine the first two vectors, and one more other
> vector determined by my other R script, say, vector 5.  Then my R script
> is
> 
> x <- 5
> cbind(v1, v2, paste("v", x, sep = ""))
> 
> The output is
> 
>      v1  v2      
> [1,] "0" "1" "v5"
> [2,] "1" "1" "v5"
> [3,] "0" "0" "v5"
> 
> This is not what I want. I want to get this:
> 
>      v1  v2  v5     
> [1,]  0   1   0
> [2,]  1   1   1
> [3,]  0   0   1
> 
> Can you give me further suggestions or comments? Thanks a lot.
> 
> Lisa
> 
> 
> 
> Barry Rowlingson wrote:
>> 
>> On Tue, Dec 29, 2009 at 6:31 PM, Lisa <lisajca at gmail.com> wrote:
>>>
>>> Thank you for your reply. But in the following case, "cat()" or
> "print()"
>>> doesn't work.
>>>
>>> data.frame(cbind(variable 1, variable 2, cat(paste("variable", x), 
>>> "\n"))), where x is a random number generated by other R script.
>>>
>>> Lisa
>> 
>>  Yes, because you are Doing It Wrong. If you have data that is indexed
> 
>> by an integer, don't store it in variables called variable1, variable2
> 
>> etc, because very soon you will be posting a message to R-help that is
> 
>> covered in the R FAQ...
>> 
>>  Store it in a list:
>> 
>>  v = list()
>>  v[[1]] = c(1,2,3,4,5)
>>  v[[2]] = c(4,5,6,7,8,9,9,9)
>> 
>> then you can do v[[i]] for integer values of i.
>> 
>> If you really really must get values of variable by name, perhaps 
>> because someone has given you a data file with variables called
>> variable1 to variable99, then use the paste() construction together 
>> with the 'get' function:
>> 
>> [ not tested, but should work ]
>> 
>>  > v1="99"
>>  > v2="102"
>>  > i=2
>>  > get(paste("v",i,sep=""))
>>  [1] 102
>> 
>> Barry
>> 
>> ______________________________________________
>> 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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> 
> ______________________________________________
> 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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> ______________________________________________
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> PLEASE do read the posting guide
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> 
> 

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