Rank: 89 based on 429 downloads (last 30 days) and 7 files submitted
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Will Dwinnell

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I am a data miner who has an interest in statistics, machine learning and image processing.

Professional Interests:
data mining, machine learning, image processing, statistics, neural networks

 

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Files Posted by Will View all
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(last 30 days) 		Comments Rating
03 Jan 2012 Mutual Information Calculates the mutual information between two discrete variables (or a group and a single variable). Author: Will Dwinnell mutual information, entropy, discrete, information theory, statistics, mathematics 85 5
11 Dec 2010 LDA: Linear Discriminant Analysis Performs linear discriminant analysis. Author: Will Dwinnell linear discriminant, linear discriminant a..., pattern recognition, lda, data mining, classifier 200 9
  • 4.6
4.6 | 5 ratings
12 Sep 2010 Joint Entropy Calculates the joint entropy of a group of variables. Author: Will Dwinnell entropy, information theory, discrete, joint entropy, mathematics, statistics 43 0
  • 5.0
5.0 | 1 rating
12 Sep 2010 Conditional Entropy Calculates the conditional entropy of a discrete variable, given other discrete variables. Author: Will Dwinnell entropy, information theory, conditional entropy, discrete, statistics, mathematics 19 0
12 Sep 2010 Entropy Calculates the sample entropy, in bits, of discrete variables. Author: Will Dwinnell entropy, information theory, discrete, mathematics, statistics 73 3
Comments and Ratings by Will View all
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04 Jan 2013 Mutual Information Calculates the mutual information between two discrete variables (or a group and a single variable). Author: Will Dwinnell

By "discrete", I mean integer values (intended to act as codes for distinct symbols).
03 Jan 2012 Mutual Information Calculates the mutual information between two discrete variables (or a group and a single variable). Author: Will Dwinnell

This routine is intended for use with discrete variables, not continuous ones.
07 Apr 2011 LDA: Linear Discriminant Analysis Performs linear discriminant analysis. Author: Will Dwinnell

Input and Target are both from the training data. "Input" is a matrix containing the independent variables, while "Target" contains the dependent variable.
Comments and Ratings on Will's Files View all
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04 Jun 2013 Mutual Information Calculates the mutual information between two discrete variables (or a group and a single variable). Author: Will Dwinnell Debanjan

where can I find the 'Entropy' and 'JointEntropy' functions? The Mutual Information does not seem to run without these functions
27 Mar 2013 Entropy Calculates the sample entropy, in bits, of discrete variables. Author: Will Dwinnell Ferre, Julia

Do you think we could used this code for images? (the images should be considered as 1D vectors, of course).
07 Mar 2013 LDA: Linear Discriminant Analysis Performs linear discriminant analysis. Author: Will Dwinnell Qasem

Thank you for your program.

But I agree with maryam, after you find the coefficients for the training data, it should be used to test and classify another data which is missed the class label.
It is great if it is contains a testing part.

@ Christian Johner: where is the file?
04 Jan 2013 Mutual Information Calculates the mutual information between two discrete variables (or a group and a single variable). Author: Will Dwinnell Dwinnell, Will

By "discrete", I mean integer values (intended to act as codes for distinct symbols).
03 Dec 2012 DeltaRule Trains a single artificial neuron using the delta rule. Author: Will Dwinnell sadik, mahmud

Top Tags Applied by Will
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statistics, discrete, entropy, information theory, mathematics
Files Tagged by Will View all
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(last 30 days) 		Comments Rating
09 Aug 2012 Screenshot Decision Trees and Predictive Models with cross-validation and ROC analysis plot This code implements a classification tree and plots the ROC curves for each target class Author: Andrea Padoan classification tree, classification, decision tree, statistics, machine learning, crossvalidation 51 2
03 Jan 2012 Mutual Information Calculates the mutual information between two discrete variables (or a group and a single variable). Author: Will Dwinnell mutual information, entropy, discrete, information theory, statistics, mathematics 85 5
11 Dec 2010 LDA: Linear Discriminant Analysis Performs linear discriminant analysis. Author: Will Dwinnell linear discriminant, linear discriminant a..., pattern recognition, lda, data mining, classifier 200 9
  • 4.6
4.6 | 5 ratings
12 Sep 2010 Joint Entropy Calculates the joint entropy of a group of variables. Author: Will Dwinnell entropy, information theory, discrete, joint entropy, mathematics, statistics 43 0
  • 5.0
5.0 | 1 rating
12 Sep 2010 Conditional Entropy Calculates the conditional entropy of a discrete variable, given other discrete variables. Author: Will Dwinnell entropy, information theory, conditional entropy, discrete, statistics, mathematics 19 0

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