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R Statistical Application Development by Example Beginner's Guide by Prabhanjan Narayanachar Tattar

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The resistant line

In Example 3.2.3. The Michelson-Morley experiment of Chapter 3, Data Visualization, we visualized data through the scatter plot which indicates possible relationships between the dependent variable (y) and independent variable (x). The scatter plot or the x-y plot is again an EDA technique. However, we would like a more quantitative model which explains the interrelationship in a more precise manner. The traditional approach would be taken in Chapter 7, The Logistic Regression Model. In this section, we would take an EDA approach for building our first regression model.

Consider a pair of n observations: The resistant line. We can easily visualize ...

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