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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

Chapter 5. Statistical Inference

In the previous chapter, we came across numerous tools that gave first insights of exploratory evidence into the distribution of datasets through visual techniques as well as quantitative methods. The next step is the translation of these exploratory results to confirmatory ones and the topics of the current chapter pursue this goal. In the Discrete distributions and Continuous distributions sections of Chapter 1, Data Characteristics, we came across many important families of probability distribution. In practical scenarios, we have data on hand and the goal is to infer about the unknown parameters of the probability distributions.

This chapter focuses on one method of inference for the parameters using the maximum likelihood estimator (MLE). Another way of approaching this problem is by fitting a probability distribution for the data. The MLE is a point estimate of the unknown parameter that needs to be supplemented with a range of possible values...

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