How to add column to dataframe in R ?

In this article, we are going to see how to add columns to dataframe in R. First, let's create a sample dataframe.

Adding Column to the DataFrame

We can add a column to a data frame using $ symbol.

syntax: dataframe_name $ column_name = c( value 1,value 2 . . . , value n) 

Here c() function is a vector holds values .we can pass any type of data with similar type.  

Steps for adding a column to a dataframe.

1. Create a data frame.
2. Use the $ symbol as shown in the above syntax to add a column to a data frame.
3. Print the updated data frame to see the changes.

Example 1: Creating a data frame.

Adding a column using $ symbol:

Example 2: Creating a data frame

Adding a column to the data frame