Getting and Setting Length of the Vectors in R Programming – length() Function

**length()** function in R Language is used to get or set the length of a vector (list) or other objects.

Syntax:length(x)Parameters:x:vector or object

**Example 1:**

## Python3

`# R program to illustrate` `# length function` `# Specifying some vectors` `x <` `-` `c(` `6` `)` `y <` `-` `c(` `1` `, ` `2` `, ` `3` `, ` `4` `, ` `5` `)` `# Calling length() function` `# to get length of the vectors` `length(x)` `length(y)` |

**Output :**

[1] 1 [1] 5

**Example 2:**

## Python3

`# R program to illustrate` `# length function` `# Specifying some vectors` `x <` `-` `c(` `3` `)` `y <` `-` `c(` `1` `, ` `2` `, ` `3` `, ` `4` `, ` `5` `)` `z <` `-` `c(` `1` `, ` `2` `, ` `3` `, ` `4` `, ` `5` `)` `# Setting length of the vector` `length(x) <` `-` `2` `length(y) <` `-` `7` `length(z) <` `-` `3` `# Getting elements of the ` `# new vectors` `x` `y` `z` |

**Output:**

[1] 3 NA [1] 1 2 3 4 5 NA NA [1] 1 2 3