How to Use Min and Max Functions in R

The min() and max() function is used to find minimum and maximum values from list, data frame or vector in R.

The following method shows how you can do it with syntax.

Method: Use min() and max() Function

min(x)

max(x)

The following examples shows how to use min() and max() in R.

Use min() and max() Function on Vector

Let’s see how we can find minimum and maximum value from numeric vector:

# Create dataset
data <- c(78,89,85,84,81,79,77,85,85,81,78,89,84,84,81,80)

# Find maximum value
max_value <- max(data)

# Find minumum value
min_value <- min(data)

# Show maximum value
print(max_value)

# Show minimum value
print(min_value)

Output:

[1] 89

[1] 77

As we can see the min() function return 77 as minimum value and max() function return 89 as maximum value from vector.

Use min() and max() Function on Data Frame

We can find the maximum and minimum value from entire data frame:

# Create data frame
df <- data.frame(Pressure=c(12.39,11.25,12.15,13.48,13.78,12.89,12.21,12.58),
                  Temperature=c(78,89,85,84,81,79,77,85),
                  Humidity=c(5,7,1,2,7,8,9,4))

# Find maximum value from data frame
max_value <- max(df)

# Find minumum value from data frame
min_value <- min(df)

# Show maximum value
print(max_value)

# Show minimum value
print(min_value)

Output:

[1] 89

[1] 1

Here we get 89 as maximum value and 1 as minimum value from entire data frame.