# R Program to Count the Number of Elements in a Vector

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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`.

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