CODEWITHSUNDEEP
rlistfunctionpasteassign
wolfsatthedoor
wolfsatthedoor

Reputation: 7313

Recalling many differently-named variables easily

I am trying to create a function that does something like this:

I want "n" to be the number of x's and u's in the function.

For example, 

n=3

Myfunction=function(x,n){


 assign(paste("u",i,sep=""),x[i])

return(sum(u1+u2+...un))

}

After I create my u1 through u50, how can I call them back so I can sum them i the return function? Using paste("u",i,sep="") makes a new string object, not the formerly created variable.

Thank you for your time and help!

Upvotes: 3

Views: 163

Answers (1)

cryo111
cryo111

Reputation: 4474

 x=1:3
 n=3

 Myfunction=function(x,n){
    for (i in 1:n)  assign(paste("u",i,sep=""),x[i])
    return(sum(unlist(mget(paste("u",1:n,sep="")))))                 
 }

 Myfunction(x,n)

 #gives 6

BTW: I assume this is just a minimalistic example of some complexer problem of yours. Otherwise, there would be a much shorter solution for summing up some values, of course. ;)

Upvotes: 1

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