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This code calculates the generalized Hurst exponent H(q) of a stochastic variable x(t) (a time series) from the scaling of the renormalized q-moments of the distribution/ ~ r^[qH(q)]The value of H(q) give indication about the fractal nature of the signal. H(q) = 0.5 corresponds to a Brownian...

Suppose you have a random process x(t), that is generated from time indexed densities N(m1(t),sigma1(t)) with probability alpha, and from density N(m2(t),sigma2(t)) with probability 1-alpha.The process x(t) is directly unobservable but can be observed through y(t)=f(x(t))+noiseGiven only the data...

The Ejs Wave Function Plotter model displays a one-dimensional wave function u(x,t) depicting a disturbance at position x and time t. The disturbance can be mass density, pressure, or electric field depending on the physical context. The default wave function is sinusoidal but any other analytic...


Platforms: Mac

EDFT (Extended Discrete Fourier Transform) algorithm produces N-point DFT of sequence X where N is greater than the length of input data. Unlike the Fast Fourier Transform (FFT), where unknown readings outside of X are zero-padded, the EDFT algorithm for calculation of the DFT using only...


Platforms: Matlab

%Example:function y = f(x,t) setParameterDefault('x',1); setParameterDefault('t',3); y = 3*x-2*t;try:f('', 1); -> x=1 -> y = 1f(2); -> t=3 -> y = 0f('', []); -> x=1, t=3 -> y = -3


Platforms: Matlab

CST CAD Navigator is an easy-to-use CAD software compatible with Windows, macOS, and Linux. It enables to open and convert different 2D drawings and 3D models, get their dimensions and create section views. SUPPORTED FORMATS: CAD formats: DWG, DXF; Vector formats: PDF, SVG, CGM, GBR, PLT,...


Platforms: Windows, Windows 8, Windows 7, Windows Server

Powerful but easy-to-use graphing, curve fitting and calculating software. Graphs Cartesian (Y(x) and X(y)), polar and parametric functions, graphs of tables, equations (implicit functions), inequalities and slope fields. Up to 100 graphs in one window. Calculus features: regression analysis,...


Platforms: Windows

Stat::lsMode Perl module can format file modes like the ls -l command does. SYNOPSIS use Stat::lsMode; $mode = (stat $file)[2]; $permissions = format_mode($mode); # $permissions is now something like `drwxr-xr-x $permissions = file_mode($file); # Same as above $permissions =...


Platforms: *nix

Statistics::ROC is a Perl module with receiver-operator-characteristic (ROC) curves with nonparametric confidence bounds. SYNOPSIS use Statistics::ROC; my ($y) = loggamma($x); my ($y) = betain($x, $p, $q, $beta); my ($y) = Betain($x, $p, $q); my ($y) = xinbta($p, $q, $beta, $alpha); my...


Platforms: *nix

PDL::Fit::Levmar is a Perl module with Levenberg-Marquardt fit/optimization routines. Levenberg-Marquardt routines for least-squares fit to functions non-linear in fit parameters. This module provides a PDL ( PDL::PDL ) interface to the non-linear fitting library levmar (written in C). Levmar...


Platforms: *nix

ID3 mass tagger is a portable command-line mass tagger for audio files. ID3 mass tagger is designed for non-interactively adding, updating or removing meta-information in a number of files with a single command. It can generate tag fields from the filename and rename files using an intuitive...


Platforms: *nix

Power Retouche Photoshop plug-ins for high quality photo retouching and image editing. 8 and 16 bit. Supports RGB, CMYK, Lab, Grayscale, Duotone. Black & White Studio plug-in A digital darkroom to convert color photography to black and white photography A black and white photography...


Platforms: Mac

Power Retouche Photoshop plug-ins for high quality photo retouching and image editing. 8 and 16 bit. Supports RGB, CMYK, Lab, Grayscale, Duotone. Black & White Studio plug-in A digital darkroom to convert color photography to black and white photography A black and white photography...


Platforms: Windows

the stationary signal f(t)=cos(2*pi*5*t)+ cos(2*pi*10*t)+ cos(2*pi*20*t)+ cos(2*pi*50*t)having frequencies of 5,10, 20and 50 Hz at any given time instant.MATLAB program can be implemented to plot the stationary signal mentioned above:Clear...


Platforms: Matlab

FASTRMS Instantaneous root-mean-square (RMS) power via convolution.FASTRMS(X), when X is a vector, is the time-varying RMS power of X, computed using a 5-point rectangular window centered at each point in the signal. The output is the same size as X and contains, for each point in X, an estimate...


Platforms: Matlab

Some curve fitting or smoothing tools can benefit from knowledge of the noise variance to expect on your data. Kalman filters use this information, also some spline fitting tools. So I wrote a function to extract the noise variance from a signal vector. It also works on any specified dimension of...


Platforms: Matlab

This toolbox was designed to simulate and fit linear state space models. The main literature I used for this particular package is Kim and Nelson (1999). A state space model (without non stochastic coefficients) is given by:y(t)=beta(t)*x(t)'+e(t)...


Platforms: Matlab

GMM-GMR is a set of Matlab functions to train a Gaussian Mixture Model (GMM) and retrieve generalized data through Gaussian Mixture Regression (GMR). It allows to encode efficiently any dataset in Gaussian Mixture Model (GMM) through the use of an Expectation-Maximization (EM) iterative learning...


Platforms: Matlab

Generates the roto-translation matrix for the rotation around an arbitrary line in 3D. The line need not pass through the origin. Optionally, also, applies this transformation to a list of 3D coordinates. SYNTAX 1: M=AxelRot(deg,u,x0) in: u, x0: 3D vectors specifying the line in parametric...


Platforms: Matlab

Utility function that makes it easier to work with variable number of input arguments. GETVARARGIN allows:*An optional logical check on the inputs (ie, check input type, range etc), issuing an error on the calling function if condition are not met.*An easy way to assign default values*Input...


Platforms: Matlab