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Mastering SciPy

Mastering SciPy

By : Blanco-Silva, Francisco Javier B Silva
3.5 (2)
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Mastering SciPy

Mastering SciPy

3.5 (2)
By: Blanco-Silva, Francisco Javier B Silva

Overview of this book

The SciPy stack is a collection of open source libraries of the powerful scripting language Python, together with its interactive shells. This environment offers a cutting-edge platform for numerical computation, programming, visualization and publishing, and is used by some of the world’s leading mathematicians, scientists, and engineers. It works on any operating system that supports Python and is very easy to install, and completely free of charge! It can effectively transform into a data-processing and system-prototyping environment, directly rivalling MATLAB and Octave. This book goes beyond a mere description of the different built-in functions coded in the libraries from the SciPy stack. It presents you with a solid mathematical and computational background to help you identify the right tools for each problem in scientific computing and visualization. You will gain an insight into the best practices with numerical methods depending on the amount or type of data, properties of the mathematical tools employed, or computer architecture, among other factors. The book kicks off with a concise exploration of the basics of numerical linear algebra and graph theory for the treatment of problems that handle large data sets or matrices. In the subsequent chapters, you will delve into the depths of algorithms in symbolic algebra and numerical analysis to address modeling/simulation of various real-world problems with functions (through interpolation, approximation, or creation of systems of differential equations), and extract their representing features (zeros, extrema, integration or differentiation). Lastly, you will move on to advanced concepts of data analysis, image/signal processing, and computational geometry.
Table of Contents (11 chapters)
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10
Index

Statistical inference


Statistical inference is the process of deducing properties of an underlying distribution by analysis of data. Inferential statistical analysis infers properties about a population; this includes testing hypotheses and deriving estimates.

There are three types of inference:

  • Estimation of the most appropriate single value of a parameter.

  • Interval estimation to assess what region of parameter values is most consistent with the given data.

  • Hypothesis testing to decide, between two options, what parameter values are most consistent with the data.

There are mainly three approaches to attack these problems:

  • Frequentist: Inference is judged based upon performance in repeated sampling.

  • Bayesian: Inference must be subjective. A prior distribution is chosen for the parameter we seek, and we combine the density of the data prior to obtain a joint distribution. A further application of Bayes Theorem gives us a distribution of the parameter, given the data. To perform computations...

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