How to read all files in one directory into R at once? [duplicate]

Answer 1

There are three steps:

1. Fetch all file names via list.files
2. Use lapply to read all files in a list
3. Use do.call to rbind all data into a single data frame or matrix

The code:

nm <- list.files(path="path/to/file")
do.call(rbind, lapply(nm, function(x) read.table(file=x)[, 2]))

Subsetting with [] is arbitrary, this example is for the second columns only.