10-Demo.Rmd

---
title: "R Markdown to R Script"
author: "Thiyanga Talagala"
output: html_document
---

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


**1. Scatter plot**

A scatter plot (aka scatter chart, scatter graph) uses dots to represent values for two different numeric variables.

```{r  fig.height=4, fig.width=4} 
library(ggplot2)
ggplot(iris, aes(x=Sepal.Length, y=Sepal.Width, colour=Species)) + 
  geom_point() + coord_fixed(ratio=1.7) + scale_color_brewer(palette = "Dark2")
```

**2. Boxplot**

```{r  fig.height=3, purl=FALSE} 
ggplot(iris, aes(y=Sepal.Width, fill=Species)) + geom_boxplot() + 
  scale_fill_brewer(palette = "Dark2")
```