FEATS: Execute script by node text, inject data from node and return json to node

[gabolera]

I have different needs for this library

Execute script from node text

Create a method inside nodejs for write all script and send to R for executation

Example

R.executeRawScript(`
if(!require(ltm)) install.packages("ltm", repos = "http://cran.us.r-project.org")

library("ltm")

options(max.print=1000000)
options(scipen = 999, digits = 4)

# more script...
`)

Inject values in script with nodejs

Example

R.executeRawScript(`
if(!require(ltm)) install.packages("ltm", repos = "http://cran.us.r-project.org")

library("ltm")

options(max.print=1000000)
options(scipen = 999, digits = 4)

data = read.csv(file = 'NODE_TEXT(<FILENAME>)', header = T, fileEncoding = "UTF-8-BOM", sep = ";", na.strings = '..')`, 
  { 
    FILENAME: 'data.csv'
  }
)

filename is being injected into the R script for execution

After execute script return json to node

const results = R.executeRawScript(`
if(!require(ltm)) install.packages("ltm", repos = "http://cran.us.r-project.org")

library("ltm")

options(scipen = 999, digits = 4)

data = read.csv(file = 'data.csv', header = T, fileEncoding = "UTF-8-BOM", sep = ";", na.strings = '..')
NODE_RETURN(data)`
)

console.log(results)

returning

[
  ["John", "Doe"],
  ["Alex", "Rosa"],
]

NODE_RETURN is a function has a replaced by node before execute and back to user end data

Custom types for integration

Type	Function
NODE_TEXT	Inject in script any text
NODE_ARRAY	Inject a data array into the script
NODE_RETURN	Return the data table in json format for nodejs

I don't know if I was very clear in the issue, I'm getting for a fork to make the necessary modifications and present the operation as soon as possible, The reazon these question is be a real case, and I'm having the difficulties reported.

[gabolera]

@FabrizioSandri Hello dear, I would like your opinion on this