R Programming - Unable to read files

Question

I've written an R program that reads multiple csv files. This code works if I give 'read.csv' command but it never works if I pass the name of the file as a parameter.

For example

dat <- function (x)  
 {     
awr <- data.table(read.csv(x))
  }

I passed

dat("hello.csv")

However, I'm not getting any error and the awr data set is not getting created.

For example:

awr <- data.table(read.csv("hello.csv")) ..it works...

Why is it not working when passed in the function?

Answer 1

This is happening because you're not returning any value from the function, try this:

dat <- function (x) data.table(read.csv(x))