Matrix Calculation Dimension

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.

Creates Vandermonde matrix with terms of geometric progression in each row.It is an extended version of the Matlab function "vander.m".

Two functions to find the value and position of the first min and max in a 2D matrix


Platforms: Matlab

The solution of the nearest correlation matrix applies the hypershpere or spectral decomposition methods as outlined in Monte Carlo methods in Finance by Peter Jackel, Chapter 6.Use CorrelationExample.m that applies a simple example for the two cases.


Platforms: Matlab

This function calculates the percentage of time that a given 3D Matrix exceeds some threshold value.It counts each point along the 1st Dimension that exceeds the threshold and expresses this as a percentage of the length of the 1st Dimension. This is repeated across the 2nd and 3rd Dimensions....


Platforms: Matlab

%% MYTOEPLITZ matrix finds the toeplitz matrix of a vector% Input : Vector% Output: Toeplitz Matr


Platforms: Matlab

Its based on the traditional box-counting method for finding the fractal dimension of an image. The code is just for beginners for getting an idea of how the box-counting is done.


Platforms: Matlab

Inverse every 2D matrix slice (the first two dimensions) for multi-dimensional array M: M(:,:,p,q,...) * X(:,:,p,q,...) = repmat(eye(m),[1,1,p,q,...]),where input M is a N-D array (m x m x [p x q x ...]), for all possible m=1,2,3,...and optional higher dimensions. Output X array has the same size...


Platforms: Matlab

Let the input to this function be X, an m x n matrix. Also, let Y be the output. This function does the following.Y(:,i) = X(:,i) - mean(X(:,i)), for i = 1 to n


Platforms: Matlab

This particular Direct Calculation Method is referenced from: J Hu "Radio Frequency Front-End Measurement and Modeling," Ph.D. dissertation, North Carolina State University, Raleigh NC, 2011.


Platforms: Matlab

The script when run with a matrix as an argument shall create a self-contained LaTex file which shall have the supplied matrix as a simple table. Useful for quickly writing the data into a LaTex document.


Platforms: Matlab

When a give system of linear equations are converted to vector form it can easily be written matrix form.


Platforms: Matlab

% This Function solves a bilateral matrix quadratic equation% of the form AX+XB+XCX+D = 0 for X% Inputs : Matrices A,B,C, D of appropriate dimensions%% Output : The Matrix X - if a solution exists


Platforms: Matlab

Computes the ZCA whitening of a data matrix and returns the whitened data and whitening/dewhitening transformation matrices.


Platforms: Matlab

A more short code for generating a random matrix A of (1,-1),no loop


Platforms: Matlab

Provide a matrix of which you would like to obtain the position where its maximum or minimum occurs. By specifying your desire for the max or min position, simply run the program to obtain it.


Platforms: Matlab

Generate a band matrix by giving the number of diagonals upper and below the main diagonal


Platforms: Matlab

knanmean(X,[dim]) returns the average of matrix X on dimension dim, treating NaNs as missing values.Contrarly to nanmean, works on n-dimensions matrices


Platforms: Matlab

This function normalizes the columns of a given matrix. That is it makes l2 norm of each column to 1.


Platforms: Matlab

This function finds duplicate values along the first column of a matrix, averages the remaining rows, and removes the duplicate rows.


Platforms: Matlab