R Markdown is a dynamic document format that combines plain text, code, and output in a single document. It allows you to create reproducible reports, presentations, and other types of documents that seamlessly integrate narrative text, code, and visualizations. Here's an overview of R Markdown:
Document Format:
- R Markdown documents have a .Rmd file extension and are written in plain text format. They are designed to be human-readable and can be easily edited with any text editor.
- R Markdown uses Markdown syntax to format text elements such as headings, lists, emphasis, code blocks, etc. Markdown provides a simple and intuitive way to structure and style your document.
- R Markdown allows you to embed code chunks within your document using three backticks (```) followed by the name of the programming language. Code chunks can contain R code, but you can specify other languages like Python or SQL.
- Code chunks can be evaluated, and the output is automatically included in the rendered document.
- Code chunks can include options and parameters to control the evaluation and display of code and results.
- Knitting transforms an R Markdown
document into a final output format (such as HTML, PDF, or Word). You can select the desired output file format while creating the R markdown file by the pop-up window as shown in the figure.
- Knitting executes the code chunks, combines the results with the text, and generates a final document that includes the code, its output, and any visualizations.
- R Markdown allows you to insert the results of R expressions directly within the text using inline code. Inline code is denoted by backticks followed by an equal sign ( = ) and the R expression enclosed in curly braces ({ }`).
- When the document is knitted, the inline code is evaluated, and the results are included in the generated document.
- R Markdown supports various output formats, including HTML, PDF, Word, PowerPoint, and more. You can specify the desired output format in the YAML metadata at the beginning of the document.
- Each output format has its own set of options and customization features.
- R Markdown provides numerous options for customizing the appearance and layout of your document. You can define document metadata, change the theme, control code highlighting, modify the table formatting, and more.
- R Markdown promotes reproducible research and reporting. By including the code and data analysis in the document, others can easily reproduce your work and verify your results.
R Markdown is a powerful
tool that enables you to create dynamic and reproducible documents combining
text, code, and output. It is widely used for generating reports, scientific
articles, tutorials, presentations, and more, providing an efficient and streamlined
workflow for data analysis and communication.
Example:
________________________________________________________________________
---
title: "Sample RMarkdown"
author: "Abdul Khader S"
date: "2023-12-30"
output: powerpoint_presentation
---
# Introduction
This report presents the analysis of the Iris data.
## Data Exploration
```{r}
# Load libraries
library(ggplot2)
library(dplyr)
# Load data
data <- iris
# Display the first few rows
head(data)
```
## Data Visualization
```{r}
# Scatter plot of Sepal Length vs. Sepal Width
ggplot(data, aes(x = Sepal.Length, y = Sepal.Width)) +
geom_point() +
labs(x = "Sepal Length", y = "Sepal Width") +
ggtitle("Scatter Plot")
```
## Data Analysis
```{r}
# Calculate mean Petal Length by Species
summary_data <- data %>%
group_by(Species) %>%
summarize(mean_petal_length = mean(Petal.Length))
```
## Display the summary table
```{r}
knitr::kable(summary_data)
```
## Conclusion
The analysis reveals a mean of Petal length.
_________________________________________________________________________
The above example demonstrates different use cases of R Markdown, including generating reports, performing data analysis with code and output, and creating presentation slides. You can customize the content, add more code chunks, include tables, images, and equations, and tailor the document to your specific needs. R Markdown provides a flexible and versatile framework for creating dynamic documents seamlessly integrating text, code, and visualizations.
Here check out the results - PDF, Powerpoint Slide and Make your Own HTML file😜🙄.
Click! out this link for the cheatsheet for RMarkdown - CHEATSHEET.