Insert multiple rows in R DataFrame

In this article, we are going to see how to insert multiple rows in the dataframe in R Programming Language. First, let's create a DataFrame

To create a data frame we need to use vectors. We need to create vectors with some values and pass the vectors into data.frame() function as parameter. Thus, a data frame is created. Let us see an example that demonstrates the above statement.

Example 1:

 
Output: 

👁 Image

In the above example, we have created a data frame with vectors directly as parameters. We can create data frames with already created vectors. Let us see an example.

Steps to insert multiple rows into a data frame

1. Create a dataframe.
2. Create a vector that contains rows to be added to the dataframe.
3. Use the below method to add rows to the data frame.

Implementation :

The predefined function used to add multiple rows is rbind(). We have to pass a data frame and a vector having rows of data. So, let see the example code. 

Indexing for a dataframe in R: 

variable = df([ row,column ])

If we want to extract multiple rows we can put row numbers in a vector and pass that vector as a row or column. If we want to extract 3 rows and all columns we can put row numbers in a vector and leave the column empty. The below example demonstrates the above statement. 

Example :

 a = df1([ c(1,2,3) ,   ]) # here we left column as empty which means we want extract all columns

If we want to extract specific columns then we can put column numbers in a vector and pass as a parameter. The below example demonstrates the above statement. 

Example :

b = df1( [ c(1,2,3) , c(1,2) ]  )

This is how indexing works. Let us see rbind() function introduction and implementation for inserting multiple rows into a dataframe.

rbind() method: rbind means row bind. Joining multiple rows with dataframe. 

Syntax: rbind(a, b)

Parameters:

• a = data frame
• b = data to be binded with data frame

Example 1 :

Output:

👁 Image

Example 2: Adding rows from 3 dataframe. 

 
Output: 

👁 Image