R for Data Science - Introduction

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# R for Data Science - Introduction
### Stephen Balogun
### October 03, 2021

---

## Outline

- About me

- What can R do for you?

- Industries using R

- Other benefits of R

- What will you learn from this short course?

- Requirements / Installations

- Q&A (10 minutes)

---

## About me

.right-column[

- A Public Health Physician

- A quality improvement professional and patient safety expert - led me to data science

- I am currently the Team Lead, Epidemiology and Surveillance Unit for the CARITAS Nigeria 4GATES program

- Author, [{tidyndr}](https://CRAN.R-project.org/package=tidyndr)

- Co-founder: [r4hds](https://r4hds.netlify.app/)

- [My personal website](https://taiye.rbind.io) 😄

- <svg viewBox="0 0 512 512" style="height:1em;position:relative;display:inline-block;top:.1em;" xmlns="http://www.w3.org/2000/svg">  <path d="M459.37 151.716c.325 4.548.325 9.097.325 13.645 0 138.72-105.583 298.558-298.558 298.558-59.452 0-114.68-17.219-161.137-47.106 8.447.974 16.568 1.299 25.34 1.299 49.055 0 94.213-16.568 130.274-44.832-46.132-.975-84.792-31.188-98.112-72.772 6.498.974 12.995 1.624 19.818 1.624 9.421 0 18.843-1.3 27.614-3.573-48.081-9.747-84.143-51.98-84.143-102.985v-1.299c13.969 7.797 30.214 12.67 47.431 13.319-28.264-18.843-46.781-51.005-46.781-87.391 0-19.492 5.197-37.36 14.294-52.954 51.655 63.675 129.3 105.258 216.365 109.807-1.624-7.797-2.599-15.918-2.599-24.04 0-57.828 46.782-104.934 104.934-104.934 30.213 0 57.502 12.67 76.67 33.137 23.715-4.548 46.456-13.32 66.599-25.34-7.798 24.366-24.366 44.833-46.132 57.827 21.117-2.273 41.584-8.122 60.426-16.243-14.292 20.791-32.161 39.308-52.628 54.253z"></path></svg>: follow @eppydoc 👍

- <svg viewBox="0 0 448 512" style="height:1em;position:relative;display:inline-block;top:.1em;" xmlns="http://www.w3.org/2000/svg">  <path d="M416 32H31.9C14.3 32 0 46.5 0 64.3v383.4C0 465.5 14.3 480 31.9 480H416c17.6 0 32-14.5 32-32.3V64.3c0-17.8-14.4-32.3-32-32.3zM135.4 416H69V202.2h66.5V416zm-33.2-243c-21.3 0-38.5-17.3-38.5-38.5S80.9 96 102.2 96c21.2 0 38.5 17.3 38.5 38.5 0 21.3-17.2 38.5-38.5 38.5zm282.1 243h-66.4V312c0-24.8-.5-56.7-34.5-56.7-34.6 0-39.9 27-39.9 54.9V416h-66.4V202.2h63.7v29.2h.9c8.9-16.8 30.6-34.5 62.9-34.5 67.2 0 79.7 44.3 79.7 101.9V416z"></path></svg>: [Stephen Balogun](https://www.linkedin.com/in/stbalogun/) 
]

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<img src="./imgs/Stephen.png" width="731" />
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---

## What can R do for you?

- You probably assume that R can be used for complex data analytics including visualization and modelling (I guess that's why you are here).

- Yes, <svg aria-hidden="true" role="img" viewBox="0 0 581 512" style="height:1em;width:1.13em;vertical-align:-0.125em;margin-left:auto;margin-right:auto;font-size:inherit;fill:currentColor;overflow:visible;position:relative;"><path d="M581 226.6C581 119.1 450.9 32 290.5 32S0 119.1 0 226.6C0 322.4 103.3 402 239.4 418.1V480h99.1v-61.5c24.3-2.7 47.6-7.4 69.4-13.9L448 480h112l-67.4-113.7c54.5-35.4 88.4-84.9 88.4-139.7zm-466.8 14.5c0-73.5 98.9-133 220.8-133s211.9 40.7 211.9 133c0 50.1-26.5 85-70.3 106.4-2.4-1.6-4.7-2.9-6.4-3.7-10.2-5.2-27.8-10.5-27.8-10.5s86.6-6.4 86.6-92.7-90.6-87.9-90.6-87.9h-199V361c-74.1-21.5-125.2-67.1-125.2-119.9zm225.1 38.3v-55.6c57.8 0 87.8-6.8 87.8 27.3 0 36.5-38.2 28.3-87.8 28.3zm-.9 72.5H365c10.8 0 18.9 11.7 24 19.2-16.1 1.9-33 2.8-50.6 2.9v-22.1z"/></svg> can do all of those, a lot more!!! 💑 🤗

- Let's take a look at some of the things R can do for you 🛣

---

## Beautiful Arts in R

.pull-left[

<img src="./imgs/ij_01.png" width="80%" />
<footnote> <i>source:</i> Ijeamaka Anyene |@ijeamaka_a
</footnote>

]

.pull-right[

]

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## Beautiful Arts in R - 02

.pull-left[

<footnote> <i>source:</i> Ijeamaka Anyene |@ijeamaka_a
</footnote>

]

.pull-right[

]

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## Games

.pull-left[

<footnote>
  <i>source:</i>
  <a "https://rpodcast.shinyapps.io/hotshot_dashboard/?_ga=2.208167953.2086729808.1633251750-2118447652.1633251750">
  Hotshots dashboard engine
  </a>
</footnote>

]

.pull-right[

]

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## Text mining - 01

<footnote>
  <i>source:</i>
  <a "https://www.r-graph-gallery.com/wordcloud.html">
  R graph gallery
  </a>
</footnote>

---

## Dashboards

.pull-left[

<footnote>
  <i>source:</i>
  <a "">
  Shiny demo
  </a>
</footnote>

]

.pull-right[

<footnote>
  <i>source:</i>
  <a "https://skylab.cdph.ca.gov/ODdash/">
  California Overdose Surveillance
  </a>
</footnote>

]

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## Websites

.pull-left[

<footnote>
  <a "https://taiye.netlify.app">
  <i>Personal website</i>
  </a>
</footnote>

]

.pull-right[

<footnote>
  <a "https://r4hds.app">
  <i>Corporate website</i>
  </a>
</footnote>
]

---

## Others

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- GIS Maps

<footnote>
  <i>Source</i>
  Balogun Stephen | @eppdoc
</footnote>

]

.pull-right[

- Music analysis ([rmusic]("https://towardsdatascience.com/compose-and-play-music-in-r-with-the-rmusic-package-b2afa90761ea") and [chorrrds]("https://www.analyticsvidhya.com/blog/2018/08/chorrrds-r-package-analyzing-working-music-data/"))

<img src="./imgs/music.png" width="85%" />
]

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## R in Industries

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]

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- Google

- Facebook

- Microsoft

- Twitter

- Norvatis

- WHO

- Bioconductor (genomics data analysis)

- Janssen

<footnote>
  <sup>1</sup><a "http://makemeanalyst.com/companies-using-r/">
  Companies using R
  </a>
  <br/>
  
  <sup>2</sup><a "https://r4hds.netlify.app/why_r">
  Why you should use R
  </a>
</footnote>
]

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## Other benefits of R

- [Open source 📬](https://en.wikipedia.org/wiki/Open_source)

- [Free 🆓](https://www.gnu.org/philosophy/free-sw.html)

- [Strong R community/support 👪](https://community.rstudio.com/)

- [Reproducible 👨‍🔬](https://www.annualreviews.org/doi/10.1146/annurev-publhealth-012420-105110?url_ver=Z39.88-2003&rfr_id=ori%3Arid%3Acrossref.org&rfr_dat=cr_pub++0pubmed)

- Broad 📚
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## What you will learn

This short course will get you started.

- Basic Introduction to R

- Importing your data into R

- Transforming your data into "easy-to-use" format

- Data visualization - making simple charts

- Communicating your findings

All these using practical examples!!!

🆒 right? 😉

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## Requirements

- [<svg aria-hidden="true" role="img" viewBox="0 0 581 512" style="height:1em;width:1.13em;vertical-align:-0.125em;margin-left:auto;margin-right:auto;font-size:inherit;fill:currentColor;overflow:visible;position:relative;"><path d="M581 226.6C581 119.1 450.9 32 290.5 32S0 119.1 0 226.6C0 322.4 103.3 402 239.4 418.1V480h99.1v-61.5c24.3-2.7 47.6-7.4 69.4-13.9L448 480h112l-67.4-113.7c54.5-35.4 88.4-84.9 88.4-139.7zm-466.8 14.5c0-73.5 98.9-133 220.8-133s211.9 40.7 211.9 133c0 50.1-26.5 85-70.3 106.4-2.4-1.6-4.7-2.9-6.4-3.7-10.2-5.2-27.8-10.5-27.8-10.5s86.6-6.4 86.6-92.7-90.6-87.9-90.6-87.9h-199V361c-74.1-21.5-125.2-67.1-125.2-119.9zm225.1 38.3v-55.6c57.8 0 87.8-6.8 87.8 27.3 0 36.5-38.2 28.3-87.8 28.3zm-.9 72.5H365c10.8 0 18.9 11.7 24 19.2-16.1 1.9-33 2.8-50.6 2.9v-22.1z"/></svg> software](https://cran.r-project.org)

- [RStudio](https://www.rstudio.com/products/rstudio/download/)

- [some R packages](#installation-required-r-packages)

- A compiler (optional):

- [Rtools on Windows](https://cran.r-project.org/bin/windows/Rtools/)
    
    - [Xcode command line tools on macOS](https://developer.apple.com/programs/register/)
    
- Good internet connection

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## Installation - R

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- Visit the [`CRAN` website](https://cran.r-project.org)

- Follow the instructions provided.

- I encourage you accept default settings.
]

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<img src="./imgs/cran.png" width="100%" />
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## Installation - RStudio

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- Visit the [RStudio website](https://www.rstudio.com/products/rstudio/download/)

- Scroll down a bit and download the free version.

- Follow the installation prompt.
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<img src="./imgs/rstudio.png" width="100%" />
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## Installation - Required R packages

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- Download the [package demo folder](https://github.com/stephenbalogun/intro_to_R_demo/archive/refs/heads/master.zip)

- Unzip and place in a folder of your choice

- In the unzipped folder, click on `*.Rproj` file to open your project in `RStudio`

]

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<img src="./imgs/installation.png" width="100%" />
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## Installation - Required R packages 2

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- Follow the three steps as indicated

- You will need internet connection

- Previously installed packages will *not* be re-installed

- You are now ready for the sessions!!!

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<img src="./imgs/installation_final.png" width="100%" />
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# Questions