[R] Re ading user input (Readline)

[skyjo]

Thanks!



Rolf Turner-3 wrote:
> 
> 
> ?get
> 
> On 29/10/2009, at 11:25 AM, skyjo wrote:
> 
>>
>> Hello. I am trying to write an interactive function that asks the  
>> user for a
>> vector of observations. Unfortunately, if a user inputs a vector, R  
>> treats
>> the vector name as a string instead of a variable. Here is an example:
>>
>>
>> vector.input<-function(){
>>    k<-as.integer(readline("Input number of vectors: "))
>>    obs<-as.integer(readline("Input number of observations per vector
>> (assumed equal): "))
>>    matrix<-matrix((rep(0,k*obs)),ncol=k)
>>    for(f in 1:k){
>>      matrix[,f]<-as.vector(readline("Input vector of observations: "))
>>    }
>>    matrix
>> }
>>
>> v1<-c(1:5)
>> v2<-c(6:10)
>>
>>> vector.input()
>> Input number of vectors: 2
>> Input number of observations per vector (assumed equal): 5
>> Input vector of observations: v1
>> Input vector of observations: v2
>>      [,1] [,2]
>> [1,] "v1" "v2"
>> [2,] "v1" "v2"
>> [3,] "v1" "v2"
>> [4,] "v1" "v2"
>> [5,] "v1" "v2"
>>
>> This resulting matrix is obviously not what I wanted. How can I get  
>> the
>> final matrix to look like:
>>
>>> matrix
>>      [,1] [,2]
>> [1,]    1    6
>> [2,]    2    7
>> [3,]    3    8
>> [4,]    4    9
>> [5,]    5   10
>>
>> ?
>>
>> Thanks in advance,
>> Skyler
>>
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>> input-%28Readline%29-tp26101738p26101738.html
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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.
> 
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