In the previous tutorial I have shown How to Parse/Read XML Files using R Programming. In this class we will see How to Parse Website Source Code and fetch important information from it using R Programming Language. Parsing an HTML file helps in finding useful information about the website. In this class I am going to parse http://www.tutorialspoint.com/ and find out all the courses available on the website.
How to Parse Website Source Code
To parse website Source Code you need to install and load ‘XML’ package. To do so use the following code:
Once the package is loaded, you can use htmlTreeParse() function to get the source code of the webpage in R Object. Example shown below:
Output is shown below:
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