subset()

The subset() function returns a subset of a data frame that matches the specified conditions.

Syntax

subset(df_object, expression)

• The df_object parameter is the data frame to retrieve the subset from.
• The expression specifies the subset conditions.

Example

The following example uses a CSV file named inventory.csv with the following information in it:

The subset() function can be used to get the subset of items where the Cost is greater than 10:

# Read file
df <- read.csv("inventory.csv")

# Retrieve subset
subset(df, Cost > 10)

The example returns the following:

      Item Quantity Cost
1  Hoodies       58   25
4 T-shirts      100   15