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The length of a vector means the total number of elements present in a given vector.

In R, we can use the `length()` function to find the total number of elements present in a vector.

## Example: Length of a Vector in R Using length()

```# create a vector
languages <- c("R", "Swift", "Java", "Python")

# find length of languages vector
length(languages) # 4

# create another vector
numbers <- c(1,5,7,9,12,54)

# find length of numbers vector
length(numbers) # 6```

Output

```[1] 4
[1] 6```

In the above example, we have used the `length()` function to find the length of the vector named languages and numbers respectively.

Since

• languages contain 4 elements, the function 4.
• numbers contain 6 elements, the function 6.

## Example 2: Length of a String in R Using str_length()

In order to use the `str_length()` function, we first import the `stringr` package.

```# import stringr package
library(stringr)

string1 <- "Programiz"

# use str_length() of stringr package to find length
result <- str_length(string1)

cat("Total length:", result)```

Output

`Total length: 9`

Here, we have used the `str_length()` function provided by the `stringr` package to find the length of string1.