R tests Javascript simple-statistics with V8

Readme.md

With V8 from Jeroen Ooms, we can do things like use R totest this Javascript stats library simple-statistics from Tom McWright.

code.R

# check simple-statistics with R
#   https://github.com/tmcw/simple-statistics

library(V8)
library(jsonlite)

ct = new_context("window")

ct$source("https://raw.githubusercontent.com/tmcw/simple-statistics/master/src/simple_statistics.js")

coef(lm( mpg ~ wt, mtcars ))

ct$eval(
  sprintf("
    var lm = ss.linear_regression()
        .data(%s);
    [ lm.b(), lm.m()  ]

  ",toJSON(lapply(1:nrow(mtcars),function(x){c(mtcars$wt[x],mtcars$mpg[x])}))
  )
)

Cool! Here is a slightly more cleaned up version: https://gist.github.com/jeroenooms/a5b07a669285da699056