Intro to R and RStudio

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# Intro to R and RStudio
## Mini-Lecture 2
### Ben Baumer
### SDS 192</br>Jan 29, 2020</br>(<a href="http://beanumber.github.io/sds192/lectures/02-intro_to_R.html" class="uri">http://beanumber.github.io/sds192/lectures/02-intro_to_R.html</a>)

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# Announcements

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# Textbook

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<img src="https://images.tandf.co.uk/common/jackets/amazon/978149872/9781498724487.jpg" width="300px">
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- 📣: [Preview of 2nd edition free online](https://beanumber.github.io/mdsr2e/)
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# About you

- We have 101 Slack users
    - SDS 236 students are on as well!
    - several questions were asked and answered!
    - check your notification settings

- Half of you are 1st- or 2nd-years
    - 13 post-bacs, seniors
    - 16 juniors, Adas
    - 14 sophomores
    - 17 first-years

- Majors
    - SDS, ECO, CSC, BIO, ENV, GOV, MTH, PSY
    - ARC, EDC, CLT, MED, LNG, ...
    
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# You're here because...

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- SDS major or minor
- learning about programming (esp. R)
- practical, applied experience (jobs)
- interested in working with data
- curious about data science

]

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![](https://media.giphy.com/media/l0K4mYKI1zvLkdv5m/giphy.gif)
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- heard good things about course

> "to learn R and to **conquer fear over computer**"

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# R experience

- 80% **of respondents** report zero or little R experience!

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# Homework

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Download and install R

.center[![](https://cdn.iconscout.com/icon/free/png-256/r-5-283170.png)]

(https://cloud.r-project.org/)
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Download and install RStudio Desktop

.center[![](https://fowlercs.com/wp/wp-content/uploads/2018/02/rstudio.png)]

(https://www.rstudio.com/products/rstudio/download/)

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# You have a choice, but...

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Option `A`: [RStudio Server](http://rstudio.smith.edu)

- online, cloud-based
- no installation
- can use from anywhere
- have to share resources!
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Option `B`: RStudio Desktop

- have to install
- installation is local
- can monopolize your own resources
- can still collaborate
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- choose `B`...

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- ...unless you have a Chromebook

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# R Markdown

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# R Markdown

.center[![](http://rmarkdown.rstudio.com/images/markdownChunk.png)]

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# Example

.center[![](http://rmarkdown.rstudio.com/images/quicktourExample.png)]
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# Markdown + Pandoc

.center[![](http://rmarkdown.rstudio.com/images/RMarkdownOutputFormats.png)]

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# Now

1. Lab \#1: [Intro to R and RStudio](../lab-intro_to_r.html)
    - No submissions
    - Get credit by responding to prompt on Slack channel `#lab1`
    - Deadline: before next class (11 am sharp!)

2. [Homework \#1](../hw/hw_viz.html)
    - due next Sunday just before midnight