tests/testthat/Rmd_test.md

In JuliaCall: Seamless Integration Between R and 'Julia'

Test

Changcheng Li 2017/9/23

Use JuliaCall as Julia Engine in R Markdown

To use JuliaCall package for julia engine in R Markdown document. Just set the engine for julia to JuliaCall::eng_juliacall like this:

knitr::knit_engines$set(julia = JuliaCall::eng_juliacall)

## This is a julia language chunk.
## In julia, the command without ending semicolon will trigger the display
## so is JuliaCall package. 
## The julia display will follow immediately after the corresponding command
## just as the R code in R Markdown.
a = sqrt(2)

## 1.4142135623730951

a = sqrt(2);

b = begin println(sqrt(2)); sqrt(2) end

## 1.4142135623730951

## 1.4142135623730951

Get Access to Julia in R Chunk

And you can also get access to julia variables in R code chunk quite easily using JuliaCall, for example:

## This is a R language chunk.
## In the previous julia chunk, we define variable a, 
## we can use functions in JuliaCall to get access to it.
JuliaCall::julia_eval("a") + JuliaCall::julia_eval("b")

## [1] 2.828427

JuliaCall documentation built on Sept. 8, 2022, 5:10 p.m.