Intro.Rmd

---
title: "Intro to R"
author: "Mattan S. Ben-Shachar"
date: '`r Sys.Date()`'
output:
  xaringan::moon_reader:
    lib_dir: libs
    css: ["css/xaringan-themer.css", "hygge", "css/custom.css"]
    seal: false
    nature:
      ratio: '16:9'
      highlightStyle: github
      highlightLines: true
      countIncrementalSlides: false
      slideNumberFormat: "%current%"
editor_options: 
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---

```{r setup, include=FALSE}
options(htmltools.dir.version = FALSE)
library(knitr)
opts_chunk$set(
  echo = FALSE,
  dpi = 600,
  warning = FALSE,
  message = FALSE
)
library(fontawesome)
library(emo)
# library(xaringanExtra)
# library(xaringanBuilder)
```

```{r xaringan-themer, include=FALSE, warning=FALSE}
library(xaringanthemer)
link_color <- "#bf94e4"
style_duo_accent(
  base_font_size = "25px",
  primary_color = "#182933",
  secondary_color = "#a2174a",
  # Header
  inverse_header_color = "#FFFFFF",
  header_color = "#000000",
  # Text
  inverse_text_color = "#FFFFFF",
  text_color = "#000000",
  # Others
  text_bold_color = NULL,
  link_color = link_color,
  code_inline_color = NULL,
  # MISC
  colors = c(myblue = "#182933",
             myred = "#a2174a"),
  outfile = "css/xaringan-themer.css", 
)
```

class: left, bottom, title-slide

# Advanced Research Methods foR Psychologists

## Practical Applications in R

---







# What is R?

R is **free `r emo::ji("money_mouth_face")`** and **open source** programming language for **statistical computing and graphics `r emo::ji("chart increasing")`** (but can also do a lot more).

---





# Why R?

- Slowly [replacing SPSS](https://lindeloev.net/spss-is-dying/) as the go-to stats software in social-sci.  

--


- R is also significantly better than Excel for data analysis [(which you should not use for data analysis!)](http://www.bbc.com/news/technology-37176926).  

--

- One of the [top programming languages for data/statistics in industry](https://twitter.com/tylerburleigh/status/1172920043891503105).  

--

- New statistical methods are implemented first in R!
<br><sub>(often never available in commercial applications...)</sub>  

--

- Highly extendable – over 10,000 [community-developed packages](https://cran.r-project.org/web/packages/index.html) `r emo::ji("package")`.  


---









# Why *not* R?

- Requires *coding* `r emo::ji("face_screaming_in_fear")`, with no point-and-click user interface.  

--

- Learning to code is like más nyelv tanulása...

- Slow learning curve... Requires lots of practice!  

--

<center>
<img src="img/hadley1.png" width="80%" />
</center>

--

<sub>(I hope can write some shitty code together)</sub>  


???

Who has any coding exp?

---











# Why R after all?

--

Within R you can:  

- **Prepare** your data for analysis and plotting.  
- **Model** your data with all the familiar (and new!) stats model.  
- Create beautiful **plots and figures**.
- (Even write you whole thesis / papers...)  

--

Long term benefits:  

- All of this in a **reproducible manner**.  
- **Reuse code** on new data - just copy and paste!  

---










# Why R after all?

.pull-left[
<img src="img/whyR1.png" width="100%" />

R can also be used for writing [papers and reports >>](https://doi.org/10.1525/collabra.192)  
]

.pull-right[
<img src="img/whyR2.png" width="100%" />
]

---








# What you will learn

- How to import and prepare data  
- Generate summary  
- Make plots  
- How to fit and explore statistical models  

--

## What you will *NOT* learn

- How to make your code more efficient.  
- How to write your own packages.  
- You will also not learn *everything*...

---








# Resources

- ***Free online books and courses***  
  - **R for Data Science** | [r4ds.had.co.nz/](r4ds.had.co.nz/)  
  - **Learning Statistics with R** | [learningstatisticswithr.com](learningstatisticswithr.com/)  
  - **R for Psychological Science** | [psyr.org](psyr.org/)  
  - **Statistical Thinking for the 21st Century** | [statsthinking21.org](statsthinking21.org/)  
  
  
- ***Cheat sheets*** | [rstudio.com/resources/cheatsheets](rstudio.com/resources/cheatsheets/)  
- ***Stay up-to-date*** 
  - **R-bloggers** | [r-bloggers.com](r-bloggers.com/)  
  - **Twitter** | [#rstats](twitter.com/search?q=%23rstats)

Even more [here>>](https://github.com/mattansb/Advanced-Research-Methods-foR-Psychologists/wiki/Resources)

---












.pull-left[
<img src="img/pollard1.png" width="100%" />

- [Getting-help Guide >>](blog.rsquaredacademy.com/getting-help-in-r-updated/)  
- [`R` Search engine >>](rseek.org/)  
]

.pull-right[
<img src="img/hope.png" width="60%" />
]