Table of Contents

- 1 Why I Cannot install package in R?
- 2 What are different ways to install packages in RStudio?
- 3 What is the most current version of R?
- 4 How do I update to the latest version of R?
- 5 What package is Rlang?
- 6 How do I reinstall R and RStudio?
- 7 How do I view a dataset in R?
- 8 How do I display records in R?

## Why I Cannot install package in R?

You need to set your library path to a folder that exists. In my case antivirus which was stopping r studio to download and install. For that we can either add exception in antivirus for r studio or disable antivirus and install.

## What are different ways to install packages in RStudio?

3. Install the packages (Optional)

- Run R studio.
- Click on the Packages tab in the bottom-right section and then click on install. The following dialog box will appear.
- In the Install Packages dialog, write the package name you want to install under the Packages field and then click install.

**How do I find packages in R?**

To see what packages are installed, use the installed. packages() command. This will return a matrix with a row for each package that has been installed.

**How do I clear loaded packages in R?**

You can do both by restarting your R session in RStudio with the keyboard shortcut Ctrl+Shift+F10 which will totally clear your global environment of both objects and loaded packages.

### What is the most current version of R?

R 3.6. 2, the latest update to the R language, is now available for download on Windows, Mac and Linux. As a minor release, R 3.6. 2 makes only small improvements to R, including some new options for dot charts and better handling of missing values when using running medians as a smoother on charts.

### How do I update to the latest version of R?

How to Update R. The easiest way to update R is to simply download the newest version. Install that, and it will overwrite your current version. There are also packages to do the updating: updateR for Mac, and installr for Windows.

**What is Rlang package in R?**

The rlang package provides tools to work with core language features of R and the tidyverse: The tidy eval framework, which is a well-founded system for non-standard evaluation built on quasiquotation ( !! ) and quoted arguments ( enquo() ).

**How do I install a specific version of a package in R?**

To install an older version of a package from source, do the following:

- PackageUrl <- “http://cran.r-project.org/src/contrib/Archive/ggplot2/ggplot2_0.9.1.tar.gz” install.packages(PackageUrl, repos=NULL, type=”source”)
- require(devtools)
- library(remotes)

## What package is Rlang?

Package details | |
---|---|

License | MIT + file LICENSE |

Version | 0.4.11 |

URL | https://rlang.r-lib.org https://github.com/r-lib/rlang |

Package repository | View on CRAN |

## How do I reinstall R and RStudio?

Open RStudio. Go to Tools > Install Packages. Enter tidyverse , then select Install. You are ready for Data Science Essentials for R!

**What is the difference between R and RStudio?**

R is a programming language used for statistical computing while RStudio uses the R language to develop statistical programs. R and RStudio are not separate versions of the same program, and cannot be substituted for one another. R may be used without RStudio, but RStudio may not be used without R.

**Do you need R to run RStudio?**

In order to run RStudio you need to have already installed R 2.11. 1 or higher. You can download the most recent version of R for your environment from CRAN.

### How do I view a dataset in R?

Here is how to locate the data set and load it into R. Command library loads the package MASS (for Modern Applied Statistics with S) into memory. Command data() will list all the datasets in loaded packages. The command data(phones) will load the data set phones into memory.

### How do I display records in R?

A few of the few common methods are detailed below.

- Viewing defined objects via the list function. The list (ls) function returns all of the defined objects (data.
- Viewing contents of a defined object.
- Viewing the mode of an object.
- Viewing the class of an object.
- Viewing the length of an object.

**How do I display in R?**

To display ( or print) a text with R, use either the R-command cat() or print(). Note that in each case, the text is considered by R as a script, so it should be in quotes. Note there is subtle difference between the two commands so type on your prompt help(cat) and help(print) to see the difference.