PXT125: Data Analysis

School Cardiff School of Physics & Astronomy
Department Code PHYSX
Module Code PXT125
External Subject Code F300
Number of Credits 10
Level L7
Language of Delivery English
Module Leader PROFESSOR Haley Gomez
Semester Autumn Semester
Academic Year 2019/0

Outline Description of Module

To introduce students to the mathematical and statistical techniques used to analyse physics data. Similar techniques are also employed in a non-physics environment such as financial modeling, industry or other sciences.
To develop research skills, computing skills and the ability to work independently.
To translate raw data into a robust measurement and to interpret data given a hypothesis.
To be familiar with approaches and methods in interpreting data, particularly with large data sets.
To be familiar with using statistical techniques and methods of quantitative analysis of data.
To develop sound judgment in interpreting experimental results and uncertainties.
To gain experience with analyzing and interpreting real data sets from physics and astronomy.

On completion of the module a student should be able to

Calculate the uncertainty in quantities derived from experimental results of specified precision.
Use the method of least squares-fitting and interpret chi-squared.
Articulate the differences between, and strengths and limitations of Bayesian and Frequentist approaches.
Apply a simple MCMC program to physical data.
Demonstrate by application to real data, an understanding of probability, priors, parameter estimation and sampling.

How the module will be delivered

Lectures 22 x 1 hr, Exercises, group work and computing 11 x 1 hr.

Skills that will be practised and developed

Problem solving. Analytical skills. Investigative skills. Computational skills. Mathematics. Communication Skills.

How the module will be assessed

Continuous assessment

Assessment Breakdown

Type % Title Duration(hrs)
Written Assessment 100 Data Analysis N/A

Syllabus content

The basics: Displaying and interpreting data. Data mining, causes of uncertainty. Linear error propagation.
Introduction to Bayesian Foundations: What is probability, distributions, hypothesis testing (t-tests, Mann Whitney, Kilmogorov-Smirnov test), confidence intervals; Bayes theory, priors.
Parameter Estimation and sampling: Relationships between quantities, correlation; minimizing and maximizing functions, global and local minima, least squares, maximum likelihood, singular-value decomposition, Principle component analysis.
Sampling: Bias, Monte Carlo sampling, pseudo random distributions, MCMC method, bootstrapping and Jack-knife samples, multivariate analysis techniques.
Time-frequency analysis and Image/Signal Processing: Fourier techniques including convolution, deconvolution, filtering techniques, wavelets, Floquet modes, modulation.

Essential Reading and Resource List

Click the following link to access the reading list for this module via our new interactive reading list software:


This will give you information such as where to find items in the library and links to relevant online materials.  

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