code externalisation in quarto

file1.qmd

---
title: "file 1"
format: html
---

## Code Externalisation

Write R code in external R scripts, and use `read_chunk()` to read them into the current document.

```{r cache=FALSE}
knitr::read_chunk('script.R')
```

The following two chunks are from the external R script `script.R`:

```{r test-a}
```

```{r test-b}
```

file2.qmd

---
title: "file 2"
format: html
---

## Code Externalisation, second file

Write R code in external R scripts, and use `read_chunk()` to read them into the current document.

```{r cache=FALSE}
knitr::read_chunk('script.R')
```

The following two chunks are from the external R script `script.R`:

```{r test-a}
```

```{r test-b}
```

script.R

# ---- test-a ----
1 + 1
x = rnorm(10)

# ---- test-b ----
mean(x)
sd(x)