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R Median

The median in R is calculated using the median() function. It represents the middle value in a sorted list of numbers and is less affected by outliers than the mean.

Key Topics

Median Example

# Calculating the median
values <- c(10, 20, 30, 40, 50)
median_value <- median(values)

print(median_value)

Output:

[1] 30

Code Explanation: The median() function calculates the middle value of the sorted vector values, which is 30.

Handling NA Values in Median

Use the na.rm = TRUE argument to ignore NA values when calculating the median.

# Calculating median with NA values
values_with_na <- c(10, 20, NA, 40, 50)
median_value <- median(values_with_na, na.rm = TRUE)

print(median_value)

Output:

[1] 30

Code Explanation: The na.rm = TRUE argument removes NA values before calculating the median.

Key Takeaways

  • The median() function calculates the middle value of a numeric vector.
  • Use na.rm = TRUE to ignore NA values.
  • The median is useful for understanding the central tendency when the data contains outliers.
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