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

```{r, include = FALSE}
knitr::opts_chunk$set(
  collapse = TRUE,
  comment = "#>"
)

library(ggplot2)
library(ggx)
```

# Legend

Remove the legend alltogether:

```{r}
ggplot(data=iris,
       mapping=aes(x=Sepal.Length,
                   y=Petal.Length, color=Species))+
  ggtitle("Iris")+
  geom_point()+
  gg_("remove legend")
```

Change legend font size:

```{r}
ggplot(data=iris,
       mapping=aes(x=Sepal.Length,
                   y=Petal.Length, color=Species))+
  ggtitle("Iris")+
  geom_point()+
  gg_("set font size of legend title to 40")
```