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Calculate Arithmetic mean in R Programming – mean() Function
• Last Updated : 05 Jun, 2020

`mean()` function in R Language is used to calculate the arithmetic mean of the elements of the numeric vector passed to it as argument.

Syntax: mean(x, na.rm)

Parameters:
x: Numeric Vector
na.rm: Boolean value to ignore NA value

Example 1:

 `# R program to calculate ` `# Arithmetic mean of a vector ` ` `  `# Creating a numeric vector ` `x1 <``-` `c(``1``, ``2``, ``3``, ``4``, ``5``, ``6``) ` `x2 <``-``c(``1.2``, ``2.3``, ``3.4``, ``4.5``) ` `x3 <``-` `c(``-``1``, ``-``2``, ``-``3``, ``-``4``, ``-``5``, ``-``6``) ` ` `  `# Calling mean() function ` `mean(x1) ` `mean(x2) ` `mean(x3) `

Output:

``` 3.5
 2.85
 -3.5
```

Example 2:

 `# R program to calculate ` `# Arithmetic mean of a vector ` ` `  `# Creating a numeric vector ` `x1 <``-` `c(``1``, ``2``, ``3``, NA, ``5``, NA, NA) ` ` `  `# Calling mean() function ` `# including NA values ` `mean(x1, na.rm ``=` `FALSE) ` ` `  `# Calling mean() function ` `# excluding NA values ` `mean(x1, na.rm ``=` `TRUE) `

Output:

``` NA
 2.75
```
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