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https://github.com/genomicsclass/windows

Guide to setting up R and RStudio on Windows
https://github.com/genomicsclass/windows

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Guide to setting up R and RStudio on Windows

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# Setting up R and RStudio in Windows

## Running as Administrator

- When you run the installers, make sure to run them as administrator.
- Select the file, right click and choose **Run as administrator**

## Installing R

- Open your browser and go to http://cran.r-project.org/
- Click on `Download R for Windows`

- Click on `base`

- Click on `Download R 3.1.2 for Windows`

- Open and run the file you just downloaded `R-3.1.2-win.exe`

- There is no need to change the default installation!

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| **1** | **2** | **3** |
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| **4** | **5** | **6** |
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| | | **DONE** |
| **10** | **11** | |

- Please make sure you install the latest version of R (R version 3.1.2).

## Installing Rtools

Now we need to install Rtools

- Open your browser and go to http://cran.r-project.org/
- Click on `Download R for Windows`

- Click on `Rtools`

- Download `Rtools31.exe`

- Open and run the file you just downloaded `Rtools31.exe`

- Again, there is no need to change the defaults

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| :--------------------------------------------------: | :--------------------------------------------------: | :--------------------------------------------------: |
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| **1** | **2** | **3** |
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| **4** | **5** | **6** |
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| | **DONE** | |
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## Installing RStudio

- If you have already installed RStudio, before you skip this section check if you are using the right R version. Go to `Tools/Global Options`. Make you sure you have `R-3.1.2` under R version

- Go to http://www.rstudio.com/ and click on `Desktop`

- Select `DOWNLOAD RSTUDIO DESKTOP`

- Download the installer for Windows

- Open and run the file you just downloaded `RStudio-0.98.1091.exe`

- You don't have to change any of the defaults for the installation

| . | . | . |
| :---------------------------------------------------: | :---------------------------------------------------: | :---------------------------------------------------: |
| | | |
| **1** | **2** | **3** |
| | | **DONE** |
| **4** | **5** | **6** |

## Installing devtools

- Open Rstudio, in the **Files/Plots/Packages/Help** panel, select **Packages** and then click on **Install**

- Type `devtools` under **Packages**, make sure you spell the name of the package correctly. Then, click on **Install**

- Alternatively, you can run the following command in the console:

```
install.packages("devtools")
```

## Installing packages from GitHub

We are ready to install R packages from GitHub

- First we need to load the `devtools` package

```r
library(devtools)
```

- Now we can install the `gapminder` package.

```r
install_github("jennybc/gapminder")
```

## License

http://opensource.org/licenses/MIT