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Statistical Application Development with R and Python

Statistical Application Development with R and Python

4.3 (4)
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Statistical Application Development with R and Python

Statistical Application Development with R and Python

4.3 (4)

Overview of this book

Statistical Analysis involves collecting and examining data to describe the nature of data that needs to be analyzed. It helps you explore the relation of data and build models to make better decisions. This book explores statistical concepts along with R and Python, which are well integrated from the word go. Almost every concept has an R code going with it which exemplifies the strength of R and applications. The R code and programs have been further strengthened with equivalent Python programs. Thus, you will first understand the data characteristics, descriptive statistics and the exploratory attitude, which will give you firm footing of data analysis. Statistical inference will complete the technical footing of statistical methods. Regression, linear, logistic modeling, and CART, builds the essential toolkit. This will help you complete complex problems in the real world. You will begin with a brief understanding of the nature of data and end with modern and advanced statistical models like CART. Every step is taken with DATA and R code, and further enhanced by Python. The data analysis journey begins with exploratory analysis, which is more than simple, descriptive, data summaries. You will then apply linear regression modeling, and end with logistic regression, CART, and spatial statistics. By the end of this book you will be able to apply your statistical learning in major domains at work or in your projects.
Table of Contents (12 chapters)
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11
Index

Summary


In this chapter, we began with a hypothetical dataset and highlighted the problem of overfitting. In case of a breakpoint, also known as knots, the extensions of the linear model in the piecewise linear regression model and the spline regression model were found to be very useful enhancements. The problem of overfitting can also sometimes be overcome by using the ridge regression. The ridge regression solution has been extended for the linear and logistic regression models. Finally, we saw a different approach of model assessment by using the train, validate, and test approach and the cross-validation approach.

In spite of the developments where we have intrinsically non-linear data, it becomes difficult for the models discussed in this chapter to emerge as useful solutions. The past two decades has witnessed a powerful alternative in the so-called Classification and Regression Trees (CART). The next chapter discusses CART in greater depth, and the final chapter considers modern development...

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