Performing linear regression with R

Linear regression is a common technique to find the best fit straight line in a scatter plot. The resulting line can help in predictive analysis.

In this recipe, we will add trend lines to CO2 Emission graphs using R:

Getting ready

This recipe has a few prerequisites before it can be followed:

1. Install R. The R Project for Statistical Computing website is https://www.r-project.org/.

2. Optionally, install RStudio from https://www.rstudio.com/, which is an integrated environment for R.

3. Install the Rserve package by running the following in R:

     install.packages("Rserve"); 
     library(Rserve);
   run.Rserve();

4. You will get a message that says the connection is blocked:

   

5. Go to Help, and under Settings and Performance, select Manage External Service Connection...:

   

6. Type localhost for the Server:, and leave the Port/API Key: to 6311. Test the connection, and ensure you get a successful connection message before proceeding:

   

Once R is ready and connected, you may proceed with the...