CM2104 Computational Mathematics Statistics MATLAB Code

Discrete Probability Theory 1: Introduction

ordering.m --- Simple examples of ordering and choosing items. Permutations and Combinations.

two_dice_px.m --- Throwing 2 6-sided dice probability Distribution
expectation.m --- Simple Dice Throwing Expectation Example
uniform.m --- DISCRETE Uniform Distribution Examples
binomial.m --- Simple Binomial Distribution Example
geometric.m --- Geometric Distribution Example
geometric_boy.m --- Geometric Distribution:Boys and Girls Example
poisson.m --- Example to show that an "infinite" number of Bernoulli trial approximate a Poission distribution
poisson_car.m --- Poisson Distribution: Car passing by example
poisson_webserver.m --- Poisson Distribution: Web server example
covariance.m --- Covariance examples
multinomial.m Multinomial distribution example.

binoestimator.m ---- Binomial Distribution Estimator Example
poissonestimator.m ---- Poisson Distribution Estimator Example
Spam Filter Example (Multinomial Distribution/Naive Bayes)
- Spam_Filter.zip ---- All MATLAB Code and Functions for Spam Filter Example
- spam_filter.m ---- Main Spam Filter Example
  - Read_TextFile.m ---- Read training and test data files (below)
  - parse_sentence.m ---- Parse Sentences: Count occurrence of specified tokens
  - spam_train.txt ---- Spam training sentences
  - am_train.txt ---- Ham training sentences
  - spam_test.txt ---- Spam test sentences
  - ham_test.txt ---- Ham test sentences
- spam_filter_intdata.m ----Full example of a Spam Filter where test data (used in spam_filter.m) is created within the programme.
  - make_corpus.m --- function to make test data.
  - make_sentence.m --- function to make sentences.
  - Write_to_TextFile.m --- function to output data to testing/training text files (for input to spam_filter.m)
spam_filter_orig.m --- Example based on code supplied with MATLAB documentation on Multinomial Distribution (no text processing): see doc fitcnb