Matrix Operations Worksheet

Using 'reduce' and 'map', this code shows how a matrix vector multiplication can be reduced to a single loop.

This script presents you three ways to calculate a distance matrix out of a list of n-dimensional points using scipy.

Implements the behaviours of the Matrix Class -- provides methods for matrix manipulation. usage:var inst:Matrage:


Platforms: Windows, Mac, Flash,

This DHTML script renders the Matrix effect on any short piece of text. It works in both IE4 and NS6 , and downgrades well with the rest.


Platforms: JavaScript

It will help you to make a N-point Paired matrix for FFT.


Platforms: Matlab

This function gives the decimation matrix which after post mulitpling it with the given signal gives the downsampled version of the original signal...D = decimmtx(x,N)decimates the given signal by a factor of N.[D,y] = decimmtx(x,N)gives D as well as the decimated signal y


Platforms: Matlab

[h,varargout]=plotColumns(data,varargin)plots columns of a matrix as if each column is a time seriesUSAGE:plotColumns(data);[h] = plotColumns(t,data);[h] = plotColumns(t,data,{colors});[h] = plotColumns(t,data,'plotopt');[h] = plotColumns(...,'plotopt');[h] = plotColumns(...,{colors});


Platforms: Matlab

The function generates sequency(Walsh) ordered Hadamard matrix useful for image processing, signal processing, genetic algorithms etc.


Platforms: Matlab

CONV_MTX Convolution matrix. If 'x' is a column vector of length 'nx', then conv_mtx(x,nh) gives a toeplitz matrix 'X' of size (nx+nh-1) times (nh). 'nh' is the length of the column vector 'h' with which 'x' is convolved. Thus finally 'X*h' is same as conv(x,h). If 'x' and 'h' are row vectors,...


Platforms: Matlab

These functions show some advances about MPF (Matrix Polynomial Fraction) using for represent multivariable models and design multivariable control system.


Platforms: Matlab

This user interface allows a user to load some Affymetrix data in an Excel file and perform some basic operations on it - log transform, log ratio, normalization, noise reduction, filtering, PCA and clustering, in addition to some visualizations like profile plots, boxplots and matrix...


Platforms: Matlab

X must be a N-by-K matrix, N is the number of "candidate" and the K is the number of "judge".


Platforms: Matlab

The software includes MATLAB files implementing operations on nodes in fuzzy rule based networks as well as Word files illustrating the use of the m-files with the help of examples.


Platforms: Matlab

write_matrix_bin(f,m) saves the matrix "m" in a binaryfile "f". write_matrix_bin is a lot faster than the built in function save(), andtakes up much less diskspace than the old "save -v6" which doesn't use compression.write_matrix_bin also includes an option for compression with...


Platforms: Matlab

sometimes, you want an image that contains text, instead of manually drawing 1s and 0s , this functino takes a string and returns a matrix of 1s and 0s in the form of that string. (tjhe matrix is rectangular the text string is represented as being painted by 1s)


Platforms: Matlab

This is a learning model for matrix-based data. It can be more efficient than standard vector-based models when the training sample is small or the inputs are matrices, since this model has less parameters than standard ones and exploits an inner structure of the inputs. This model can be...


Platforms: Matlab

main executing reference usages:[1] brushSmallerImageOverAnother.mThe objective is to illustrate how a smaller matrix may be 'brushed' against a larger one without overflowing.Such operations are common in image processing.If the smaller matrix is desired to start from the top left corner of the...


Platforms: Matlab

[D]=Diff_Quad(N);Differential Quadrature Matrix for 1st derivative based on Lobatto grid.It calculates for N grid points.Higher derivatives can be easily calculated by using D matrix.


Platforms: Matlab

Return covariance matrix for given data matrix X (row = object, column = feature)% @author: Kardi Teknomo% http://people.revoledu.com/kardi/index.htmlSee the usage for Mahalanobis distance computation in http://people.revoledu.com/kardi/tutorial/...isDistance.html


Platforms: Matlab

Confusion Matrix give information on misclassification. How patterns have been classified in their actual classes against other classes for each class in a matrix form.


Platforms: Matlab