Before you can analyze and visualize data, you have to get that data into R. There are various ways to do this, depending on how your data is formatted and where it’s located. Usually, the function ...

The example files used here can be downloaded by clicking the file name: example1.txt, example1.csv, example1.xlsx. (For text format files, you can copy the content on the webpage and paste it into a ...

If you want to use Yahoo Mail, Yahoo's free Web-based email service, to manage email messages in your small business, you may want to import contacts from your other email service or an email client.