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updated 1 month ago

Chebfun V4 by Chebfun Team

Numerical computation with functions instead of numbers. (numerical analysis, interpolation, approximation)

absTest

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A greedy algorithm for choosing interpolation points

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updated 1 month ago

interpm2 by Chad Greene

Densify or interpolate along paths with approximately equal spacing in meters or kilometers. (interpm, interpolation, mapping)

interpm2(lat,lon,maxdiff,method,units,tolerance)

interpm2

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updated 2 months ago

DimensionedVariable Class - units support for MATLAB by Sky Sartorius

A new variable type allowing use of real-world units and dimensions with enforced unit consistency. (units, dimensioned, aerospace)

u2num( varargin )

DimensionedVariable Class for MATLAB - notes and demos

unitsOf(in)

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updated 3 months ago

polyfitn by John D'Errico

Polynomial modeling in 1 or n dimensions (polyfit, modeling, regression)

polyfitn_demo

polydern(p,diffvar)

polyfitn(indepvar,depvar,modelterms)

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updated 3 months ago

SLM - Shape Language Modeling by John D'Errico

Least squares spline modeling using shape primitives (spline, splines, cubic)

hermite2slm(harray)

slm_tutorial

lse(A,b,C,d,solverflag,weights)

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updated 4 months ago

EzyFit 2.42 by Frederic Moisy

A free curve fitting toolbox for Matlab (approximation, interpolation, curve)

Discover Ezyfit: A free curve fitting toolbox for Matlab

about_ef (Ezyfit Toolbox)

axis0 (Ezyfit Toolbox)

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updated 5 months ago

polyfitZero by Mark Mikofski

Fit polynomial to data, forcing y-intercept to zero or arb. value and slope to zero or arb. value (mathematics, modeling, data exploration)

polyfitZero example

polyfitB(x,y,degree,b)

polyfitB0(x,y,degree,b)

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updated 6 months ago

Newton-Raphson solver by Mark Mikofski

Yet another solver that uses the backslash function to solve a set of non-linear equations. (mathematics, optimization, data exploration)

newtonraphson_example

newtonraphson(fun, x0, options)

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updated 6 months ago

Regularization Kaczmarz Tools Version 1.0 for Matlab by Andrey Ivanov

Regularization Column version of Kaczmarz algorithmfor solving ill-posed systems (iterative projection ..., incorrect problems, regularized solution)

columnkaczmarz(A,b,K,x0,options)

Convergence of the regularized form of the Column-Kaczmar...

randcolumnkaczmarz(A,b,K,x0,options)

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updated 11 months ago

Hiding multiple Text pages into a Color image by Cherma Rajan A

This program can embed/hide maximum of six monochrome Text pages into a Color image without loss. (color, watermarking, text hiding)

altertxt(im_tx1,im_tx2)

extracttxt(im)

HIDING MULTIPLE TEXT PAGES INTO A COLOR IMAGE

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updated 1 year ago

NumSim toolbox by Mathieu Gendron

Multiphysic boundary value problems, interpolation, meshless, points generation, simulation (multiphysics, boundary value proble..., interpolation)

...

Check_filename_path_and_VarName(cplt_filename,Automatic_A...

Check_inputs_NumSim(var,FieldNames_NumSim,Filenames,...

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updated 1 year ago

3D Surface Plot For Data Visualization by Yehonatan Peleg

Easy to use function for 3d surface plotting of sample data. (3d, 3d surface, 3d plot)

vecsurf_demo

vecsurf(varargin)

vecsurf_testmain.m

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updated 1 year ago

The carpetplot class by Matthias

Create carpet plots and cheater plots easily (plotting, carpet, carpet plot)

arrow(varargin)

h=hatchedline(xc,yc,linespec,theta,ar,spc,len,varargin)

Carpetplot Class Example Plots

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updated 1 year ago

Spline2D or Piecewise Continuous 2D Polynomials by Mark Mikofski

Fit a 2D function with piecewise continuous polynomials (data exploration, interpolation, mathematics)

examples

splineFit2D(f,x,y,n,m,xb,yb,continuity,ngrid)

splineVal2D(pp,x,y,n,m,xb,yb)

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updated 2 years ago

A Graphical User Interface for Solving Delay Differential Equations and doing Local Search by Soumya Banerjee

A GUI for solving a set of delay differential equations (DDEs) and local search for best solutions (biotech, data export, data import)

...

dde_auto_fit

ddecall_tcl(target,infected1,infected2,...

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updated 2 years ago

Monte Carlo Markov Chain for inferring parameters for an Ordinary Differential Equation model by Soumya Banerjee

This function uses a Monte Carlo Markov Chain algorithm to infer parameters for an ODE model (biotech, data export, data import)

analyze_mcmc(parallel)

mcmc_ode

test_gamma()

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updated 2 years ago

Free Split and Merge Expectation Maximization for MultiVariate Gaussian Mixture by Sebastien PARIS

FSMEM can estimate MVGM parameters and number of conpounds via split/merge cluster moves (mathematics, optimization, signal processing)

gene_mvgm(d , K , sig)

test_fsmem_mvgm

init_mvgm(Z , K)

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updated 2 years ago

SPLINEFIT by Jonas Lundgren

Fit a spline to noisy data. (approximation, interpolation, cubic spline)

SPLINEFIT EXAMPLES

ppdiff(pp,j)

ppint(pp,a,b)

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updated 3 years ago

B-spline tools by Jan Tore Korneliussen

Basic toolbox for polynomial B-splines on a uniform grid. OO overloading of common operators. (splines, approximation, interpolation)

bspline0( x )

bspline1( x )

bspline2( x )

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updated almost 4 years ago

Image Interpolation (ba_interp2) by Brian

Fast nearest, bi-linear and bi-cubic interpolation for image data (interp2, interpolation, nearest neighbour)

ba_interp2(F, X, Y, method)

ba_interp2_test

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updated almost 4 years ago

Surface Fitting using gridfit by John D'Errico

Model 2-d surfaces from scattered data (approximation, interpolation, modeling)

gridfit_demo

gridfit(x,y,z,xnodes,ynodes,varargin)

test_main.m

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updated 5 years ago

Fixed Point Radix-4 FFT by Mike Donovan

These functions compute a fixed point radix-4 FFT.You can generate C code from this m-code. (communications, fixed point, signla processing)

plotPYYf(sf,Fs)

Radix-4 FFT Test Script

radix4FFT1_Float(s)

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updated 7 years ago

fitellipse.m by Richard Brown

Fit ellipses to 2D points using linear or nonlinear least squares (approximation, interpolation, least squares)

fitellipse(x, varargin)

FITELLIPSE : Least squares ellipse fitting demonstration

plotellipse(varargin)

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updated 7 years ago

fitcircle.m by Richard Brown

Fits circles to 2D data using nonlinear least squares to minimise geometric error (approximation, interpolation, fitcircle)

Fitcircle Demonstration

fitcircle(x, varargin)

test_main.m

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updated 7 years ago

Lagrange Interpolator Polynomial by Dan Ellis

Find the polynomial (defined by its coefficients) passing through a set of points. (approximation, interpolation, lagrange interpolator...)

Lagrange Interpolation Polynomial

lagrangepoly(X,Y,XX)

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updated almost 8 years ago

Data Analysis with MATLAB Products - August 2006 Webinar Files by Stuart Kozola

Files used in the August 10, 2006 Webinar of same title (statistics, probability, survival)

createfigure(x1, y1, y2, y3, y4, y5)

getSeatData(fileNameBase,showplot)

mySurvivor(y)

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