Table of Contents

You can create a Vector in R using `c()`

primitive function. In R programming, the Vector contains elements of the same type and the types can be logical, integer, double, character, complex or raw. Besides c() you can also create a vector using vector(), character() functions.

The following ways of creating vectors in R are covered in this article.

- Create Vector in R using c() Function
- Create Named Vector
- Create Vector From List
- Vector of Zeros
- Vector of Specified Length
- Numeric Vector with 0 to 10 Values
- Using vector()

## 1. Create Vector in R using c() Function

In R, Vector is a fundamental data structure that is used to store elements of the same data type. and the types can be logical, integer, double, character, complex or raw. R Vector is created by using the c() combined function. Let’s see the syntax of this function and how to create a vector.

### 1.1. Syntax of c()

Following is a syntax of the c() function that is used to create a Vector in R.

```
# Syntax of c() function
c(...)
```

### 1.2. Create a Vector Example

Using c() function is the most used and common way to create a vector in R. Actually c() is a combined function that is used to combine elements into a vector or list. The following example creates a Numeric Vector, Character Vector, and Date Vector with variable names `id`

, `name`

, and `dob`

respectively.

```
# Create Vectors
id <- c(10,11,12,13)
name <- c('sai','ram','deepika','sahithi')
dob <- as.Date(c('1990-10-02','1981-3-24','1987-6-14','1985-8-16'))
```

Here variables

`id`

– Numeric Vector which stores the numeric values.`name`

– Character Vector which stores the character values.`dob`

– Date Vector which stores the date values.

The above example creates 3 Vectors, now let’s display the type of these vector variables by using `typeof()`

function. you can get the size of the vector using length().

```
# Types of Vectors
> typeof(id)
#[1] "double"
> typeof(name)
#[1] "character"
> typeof(dob)
#[1] "double"
```

## 2. Create Named Vector

You can also assign names to values while creating a vector, if you have names it is referred to as a named vector. The following example creates a vector with the names `C1`

, `C2`

, and `C3`

.

```
# Create Named Vector
x <- c(C1='A',C2='B',C3='C')
print(x)
# Output
# C1 C2 C3
#"A" "B" "C"
```

## 3. Create Vector from List

If you have a list, you can easily create a vector from a list in R by using `unlist()`

function. This function takes the list as an argument and convert it to vector. By using `is.vector()`

check if the converted vector is of type vector.

```
# Create Vector from List
li <- list('A','B','C')
v <- unlist(li)
print(v)
print(typeof(v))
print(is.vector(v))
# Output
#[1] "A" "B" "C"
#[1] "character"
#[1] TRUE
```

## 4. Vector of Zeros

To create a vector of zeros use the `integer()`

function, this function takes syntax `integer(length)`

where the `length`

param specifies the number of zeros you wanted to have on the vector.

```
# Create Vector of Zeros
v <- integer(6)
print(v)
# Output
#[1] 0 0 0 0 0 0
```

## 5. Vector of Length N

Let’s say you wanted to create a vector in R of a specified length N with the default values. The above example creates a numeric vector with the value 0 and the specified length. Similarly, to create a character vector with the specified empty spaces use the `character(N)`

.

```
# Create Vector of Specified length
v <- character(5)
print(v)
# Output
#[1] "" "" "" "" ""
```

## 6. Vector of 1 to 10

If you want a vector with 1 to 10 sequence numbers use either `seq(1,10)`

function or use `1:10`

.

```
# Create Numeric Vector with 0 to 10 Values
v <- 1:10
v <- seq(1, 10)
print(v)
# Output
# [1] 1 2 3 4 5 6 7 8 9 10
```

## 7. Using Vector()

The `vector()`

function is used to create a vector of any type. It takes the parameter `mode`

and length. mode is used to specify the type and length is used to specify the length of the vector with default values. The following example creates a logical vector with 5 elements.

```
# Create Vector using vector()
x <- vector(mode='logical',length=5)
print(x)
print(is.vector(x))
print(typeof(x))
# Output
#[1] FALSE FALSE FALSE FALSE FALSE
#[1] TRUE
#[1] "logical"
```

## 8. Complete Example of Create Vector

Following is a complete example of different ways to create a vector in R. You can find the complete example from this article at Github R Programming Examples Project.

```
# Create Vector using c()
id <- c(10,11,12,13)
name <- c('sai','ram','deepika','sahithi')
dob <- as.Date(c('1990-10-02','1981-3-24','1987-6-14','1985-8-16'))
# Create Named Vector
x <- c(C1='A',C2='B',C3='C')
# Create Vector using vector()
x <- vector(mode='logical',length=5)
# Create Character Vector
x <- character(5)
# Create Vector From List
li <- list('A','B','C')
v <- unlist(li)
# Create Vector of Zeros
v <- integer(6)
# Create Vector of Specified length
v <- character(5)
# Create Numeric Vector with 0 to 10 Values
v <- seq(1, 10)
v <- 1:10
# Create Vector using vector()
x <- vector(mode='logical',length=5)
```

## 9. Conclusion

In this article, you have learned what is a vector and how to create it by using R primitive c(), vector(), and character() functions and also learned the data types of these created Vectors. You can find the complete example from this article at Github R Programming Examples Project.

## Related Articles

- Explain Character Vector in R?
- How to Get Vector Length in R?
- Add or Append Element to Vector in R?
- How to Remove NA from Vector?
- How to Create a DataFrame From Vectors?
- How to Create Empty Vector in R?
- Create Character Vector in R?
- How to Convert Vector to List in R?
- How to Convert List to Vector in R?
- How to Concatenate Vector in R?
- Merge Vector Elements into String in R?
- How to Subset Vector in R?
- How to Sort Vector in R?
- How to Convert List to String in R?
- How to Remove Values from R Vector?
- How to Remove Duplicates from Vector in R?