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Projects & R Markdown

You’ll thank yourself later



Danielle Navarro     @djnavarro

https://djnavarro.github.io/chdss2018/

11 December 2018

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RStudio projects

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Introduction


What? Tool for R to track your project

Why? Because file paths are a nightmare

How? I'm so glad you asked...

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Introduction


What? Tool for R to track your project

Why? Because file paths are a nightmare

How? I'm so glad you asked...

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How to create

  • RStudio projects menu (top right)
  • New Project > Existing Directory
  • Create in the same folder as the git repo
  • Drop down list of projects in the menu

As usual, the details are in the tutorial

4 / 14

Behold our creation!



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One benefit to projects...

  • Close RStudio. Reopen by clicking .Rproj file
  • R is automatically in the "correct" folder
  • Switch between projects using the menu
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One benefit to projects...

  • Close RStudio. Reopen by clicking .Rproj file
  • R is automatically in the "correct" folder
  • Switch between projects using the menu

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Taking the pain out of file paths

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Only you can prevent laptop fires


@JennyBryan

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  • The "here" package is better than a laptop fire
  • Detects the .Rproj file (or a .here file if you have one)
  • Tells you where the project root is:
library(here)
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  • The "here" package is better than a laptop fire
  • Detects the .Rproj file (or a .here file if you have one)
  • Tells you where the project root is:
library(here)
  • Use the here function to specify paths:
location <- here("analysis","data","mydatafile.csv")
print(location)
## [1] "C:/Users/Dan/GitHub/sites/chdss2018/analysis/data/mydatafile.csv"
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git + projects + here

Your code...

  • is portable across operating systems
  • is easy for other people to download
  • stills works if you move the folder
  • doesn't produce "mysterious" fires
10 / 14

git + projects + here

Your code...

  • is portable across operating systems
  • is easy for other people to download
  • stills works if you move the folder
  • doesn't produce "mysterious" fires

10 / 14

R Markdown

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  • File > New File > R Markdown
  • Enter information in dialog box (right)
  • Save the file
  • Click "Knit"

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The result is a nice HTML file and a short R Markdown tutorial.
Before the next part, try writing something with R Markdown



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thank u, next

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RStudio projects

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