readFolder: Read folder

In espenmei/readFolder: What the package does (one line)

Description

This function reads all files in a folder.

Usage

readFolder(dir, pattern = "*", format = "data.frame", addFileName = NULL,
  fun, ...)

Arguments

dir	directory to folder.
pattern	wildcard pattern for filenames. Defaults to "*".
format	the format to be returned. Either a list or data.frame. Defaults to data.frame.
addFileName	column name if filename should be added to data.frame. Defaults to NULL.
fun	function to be applied to each file in the folder.
...	optional arguments passed to read.table. See ?read.table

Examples

Calculate the cumulative value for a variable("score") in a new variable("cumscore")
cumulativeSum = function(data) {
   data[, "cumscore"] = cumsum(data[, "score"])
   return(data)
}
dir = "c:/experiments/experiment1/"
data = readFolder(dir, fun = cumulativeSum)

espenmei/readFolder documentation built on May 16, 2019, 8:52 a.m.