R version 3.2.4 "very secure dishes" on Ubuntu 14.04 LTS, how can I open a file given by an user in a function? -

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i quite new in stackexchange , in r. following course on r, , assignment have series of more 300 files. have create function takes nb of files argument in vector (here id) : myfunction<-function(directory, variable, id=1:332). files in .csv format , called 001.csv until 332.csv.

my question how open given file nb of file number in id. instance, if call myfunction(directory, variable, 1), open first file (001.csv), etc. if call myfunction(directory, variable, 1:4), program open 4 first files. here attempt, doesn't work: 

myfunction<-function(directory, variable, id=1:332) {     for(i in id)     {         data<-read.csv("i.csv")     }      #data<-read.csv("") }

i precise question first step of function have write , not whole assignment ;) !

use paste0(). 

data <- read.csv(paste0(directory, "/", i, ".csv"))

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