Read CSV file and select specific rows and columns in R
In this article, we are going to see how to read CSV file and select specific rows and columns in R Programming Language.
To import a CSV file into the R environment we need to use a pre-defined function called read.csv(). Pass filename.csv as a parameter within quotations. First, we need to set the path to where the CSV file is located using setwd( ) otherwise we can pass the full path of the CSV file into read.csv( ) as a parameter.
Example 1: Selecting specific multiple rows
- In the first step, we have imported a CSV file into the R environment using read.csv( ) function.
- In the next step, we have selected 2,7 rows from CSV file using indexing and storing the result into a variable
Example 2: Selecting specific single rows
Example 3: Selecting multiple columns