---
title: "Conditional Backgrounds"
author: "Andreas Brandmaier"
date: "`r Sys.Date()`"
output: rmarkdown::html_vignette
vignette: >
  %\VignetteIndexEntry{Conditional Backgrounds}
  %\VignetteEngine{knitr::rmarkdown}
  %\VignetteEncoding{UTF-8}
reproducibleR:
  conditional_backgroundcolor: true
---

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

This document contains the following metaparameters in the YAML header of the Markdown file

```{yaml}
reproducibleR:
  conditional_backgroundcolor: true
```

This turns on dynamic coloring of code blocks that do not reproduce. 
In the following code blocks with failures to reproduce get a light red background color.

```{r}
library(reproducibleRchunks)
```

The following code is set up to reproduce fine:

```{reproducibleR ab}
a <- 1
b <- 2
```

The next code block is set up to fail:

```{reproducibleR today_rnd}
today <- date()
rnd <- rnorm(1)
```