## What is package set?

A package set is a collection of packages, such that there is only one entry (i.e. version) for a given package in the set. If you use a package manager based on package-sets, this means that when you want to install a package: it must be in the package set.

**What is datasets package in R?**

datasets-package: The R Datasets Package This package contains a variety of datasets. For a complete list, use library(help = “datasets”) .

### What is a set in R?

Sets define a ‘collection’ of objects, or things typically referred to as ‘elements’ or ‘members. ‘ The concept of sets arises naturally when dealing with any collection of objects, whether it be a group of numbers or anything else.

**How do I install a dataset in R?**

If you look at the package listing in the Packages panel, you will find a package called datasets. Simply check the checkbox next to the package name to load the package and gain access to the datasets. You can also click on the package name and RStudio will open a help file describing the datasets in this package.

## What is World in Gentoo?

The world set, also referred to as @world in Portage development, encompasses the system set and the selected set. It is the world file, together with the profile and /etc/portage (including make. conf) settings, that defines what software is installed on a system.

**What is data set in data science?**

A data set (or dataset) is a collection of data. The data set lists values for each of the variables, such as height and weight of an object, for each member of the data set. Data sets can also consist of a collection of documents or files.

### 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.

**Does R have set?**

R includes some handy set operations, including these: union(x,y) : Union of the sets x and y. intersect(x,y) : Intersection of the sets x and y. setdiff(x,y) : Set difference between x and y , consisting of all elements of x that are not in y.

## What does set seed do in R?

The set. seed() function sets the starting number used to generate a sequence of random numbers – it ensures that you get the same result if you start with that same seed each time you run the same process.

**How do I get the dataset from a package in R?**

### How do I import a dataset in RStudio?

In RStudio, click on the Workspace tab, and then on “Import Dataset” -> “From text file”. A file browser will open up, locate the . csv file and click Open. You’ll see a dialog that gives you a few options on the import.

**What is collection set in Java?**

Set in Java. Set is an interface which extends Collection. It is an unordered collection of objects in which duplicate values cannot be stored.

## What is the use of set in Java?

Set in Java Set is an interface which extends Collection. It is an unordered collection of objects in which duplicate values cannot be stored. Basically, Set is implemented by HashSet, LinkedHashSet or TreeSet (sorted representation). Set has various methods to add, remove clear, size, etc to enhance the usage of this interface

**What are the possible operations on the sets?**

Let set1 = [1, 3, 2, 4, 8, 9, 0] and set2 = [1, 3, 7, 5, 4, 0, 7, 5]. Then the possible operations on the sets are: 1. Intersection: This operation returns all the common elements from the given two sets.

### Which classes implement the set interface in Java collections?

The most famous one is to use the enhanced for loop. Classes that implement the Set interface in Java Collections can be easily perceived from the image below as follows and are listed as follows: HashSet class which is implemented in the collection framework is an inherent implementation of the hash table data structure.