R: Create paths that are safe from changing working directory.

.dot {lemon}

R Documentation

Create paths that are safe from changing working directory.

Description

The .dot functions creates functions that allows relative-like specification of paths, but are safe from changing working directory.

.dot2 allows specification of multiple .dot functions while broadcasting the functions' names and target. This function also pushes the function into the calling environment, potentially overwriting previous funtions with same name.

Usage

.dot(x, root = getwd(), mustExist = FALSE, relative = FALSE,
  create = TRUE)

.dot2(names, quiet = FALSE, ...)

Arguments

`x`	File path that is appended to `BASEDIR`.
`root`	Root of your working directory, from which `x` is relative too.
`mustExist`	Logical value; if `TRUE` and the resulting path does not exist, it raises an error.
`relative`	For `.dot`, sets default for the returned function. For the returned function, when `TRUE`, the function returns a path relative to `root`.
`create`	Logical values, creates the target directory when `TRUE` (default).
`names`	Character vector of names
`quiet`	Logical value, suppresses output to stdout() when `TRUE`.
`...`	Arguments passed on to `.dot`.

Value

A function that returns file paths constructed from root, x, and ....

Side effect: It creates the directory.

Examples


.data <- .dot('data')
.data('input.txt')
.data(c('a.txt','b.txt'))

.dot2(c('rawdata','results'))
.rawdata('rawfile.csv')
.results('myresults.txt')

[Package lemon version 0.3.3 Index]