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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

Visualization techniques for continuous variable data

Continuous variables have a different structure and, hence, we need specialized methods for displaying them. Fortunately, many popular graphical techniques are suited very well for continuous variables. As the continuous variables can arise from different phenomena, we consider many techniques in this section. The graphical methods discussed in this section may also be considered as a part of the next chapter on exploratory analysis.

Boxplot

The boxplot is based on five points: minimum, lower quartile, median, upper quartile, and maximum. The median forms the thick line near the middle of the box, and the lower and upper quartiles complete the box. The lower and upper quartiles along with the median, which is the second quartile, divide the data into four regions, with each containing equal number of observations. The median is the middle-most value among the data sorted in the increasing (decreasing) order of magnitude. On similar lines...

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