julia_eval.Rmd

---
title: "``julia_eval`` Evaluate string commands in julia and get the result."
output: html_document
---

```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = TRUE)
library(JuliaCall)
```

#### Description

``julia_eval`` evaluates string commands in julia and returns the result (automatically converted to an R object or a JuliaObject wrapper). If you don’t need the result, maybe you could try julia_command.

#### Usage
<pre><code>
julia_eval(cmd, need_return = c("R", "Julia"))
</code></pre>

#### Arguments

* ``cmd``: the command string you want to evaluate in julia.
* ``need_return``: whether you want julia to return value as an R object or a wrapper for julia object.

#### Examples
```{r}

## julia_setup is quite time consuming
julia_eval("sqrt(2)")
```
#### Value
the R object automatically converted from julia object.