(This article was first published on

**Software for Exploratory Data Analysis and Statistical Modelling**, and kindly contributed to R-bloggers)We can fit various linear regression models using the R Commander GUI which also provides various ways to consider the model diagnostics to determine whether we need to consider a different model.

Fast Tube by Casper

The **“Statistics”** menu provides access to various statistical models via the **“Fit models”** sub-menu including:

- Linear regression – the simplest scenario with a single response and one explanatory variable.
- Linear model – various extensions to the simple linear regression model where we can specify a model formula using the Wilkinson-Rogers notation.

The **“Models”** menu provides access to various diagnostics for statistical models via the **“Graphs”** sub-menu including:

- Basic diagnostic plots – four commonly used residual diagnostics including fitted values versus residuals and a normal probability plot for the residuals.

Other useful resources are provided on the Supplementary Material page.

To

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