r-script

In development, still a WIP

Module for running R scripts from node

Based on r-script by joshkatz. Decided to re-write this project because I need similar functionality and that project seems unmaintained.

Installation

R needs to already be installed, and jsonlite R library needs to be installed.

yarn add @fridgerator/r-script or npm install @fridgerator/r-script

Usage

In an R file:

input[[1]] + input[[2]]

In node:

const { R } = require('@fridgerator/r-script')

let r = new R('./add.R')

// optionally pass an options object used in child_process spawn calls
let r = new R('./add.R', {env: {PATH: '/bin:/location/to/R/bin'}})

// data is converted to a list variable `input` in the R script
r.data(2, 3)

// call the script async
r.call()
  .then(response => response === 5) // true
  .catch(e => console.log('error : ', e))

// OR call the script async

let result = r.callSync() // could raise an exception
result === 5 // true