Interpolation by Iurist

Interpolation with griddata nearest, linear, v4 (interp2 griddata, interpolation)

interpolarefarav4pct_control.m

Newton form for interpolating polynomials by Ehsan Behnam

newton_interpolation.m provides a simple tool for interpolating any function. (interpolation, newton polynomial, divided difference)

newton_interpolation(eq, degree, interval, verbose)

3D Surface Plot For Data Visualization by Yehonatan Peleg

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

vecsurf_demo

vecsurf(varargin)

vecsurf_testmain.m

The carpetplot class by Matthias

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

Carpetplot Class Example Plots

arrow(varargin)

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

Ellipsoid Interpolation by Richard

Given two binary ellipsoidal volumes, interpolate between them along a given centre line. (interpolation)

ellipsoidInterpolation()

IMComp-Image Compression Software by Saurabh Aggarwal

IMComp is an Image Compression tool useful for compressing digital JPG images. (image processing, signal processing, optimization)

IMComp(varargin)

imagecompression.m

Interpolant/Extrapolant by Mohammad Abouali

Creates Interpolant/Extrapolant for efficient mapping of data between 2D grids. (interpolationextrapol..., interpolation, extrapolation)

P=ConstructInterpolator(xs,ys,xd,yd,nPoly,nInterp)

Test_StructuredGrid.m

Test_UnstructuredGrid.m

Blend Color by Giacomo Alessandroni

BLENDCOLOR - Blend two colours specifying the fractional position (color, interpolation, image processing)

blendcolor(from, to, pos)

Inpaint over missing data in 1-D, 2-D, 3-D,... N-D arrays by Damien Garcia

Y = INPAINTN(X) computes the missing data in the N-D array X. (missing data, extrapolation, interpolation)

inpaintn(x,n,y0)

eegplot by Ikaro Silva

Uses scattered data points to interpolate pixel values of a head image. (medical, eeg, interpolation)

[z,map]=eegplot(mag,ch,unorm,ch_disp,method,color_res)

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)

polyVal2D and polyFit2D by Mark Mikofski

Evaluate 2D polynomials using Horner's method. Fit 2D polynomials to data using backslash operator. (mathematics, optimization, data exploration)

polyDer2D(p,x,y,n,m)

polyFit2D(f,x,y,n,m)

polyVal2D(p,x,y,n,m)

Dubins Curve Mex by Scott Teuscher

Creates Dubins curve from two locations with orientations (dubins curve, interpolation, robotics)

dubins_interface.m

operationOnTwoFields by Bastian Tietjen

A simple mathematical operation like subtracting on two 2d fields with multiple scalar values. (interpolation, field data, vector field)

fieldDataComparison(operator, interpolationMethod, numOfVel...

operationOnTwoFields(fieldOne, fieldTwo, operator, varargin)

fspline.m by Mark Holmes

clamped (or fixed) cubic spline at equally spaced data points (mathematics, data exploration, interpolation)

fspline(xd,yd,dyd,x)

nspline.m by Mark Holmes

natural cubic spline at equally spaced nodes (mathematics, data exploration, interpolation)

nspline(xd,yd,x)

Bias removal- and integration tool for continuous wave EPR data by Jan

This function will remove any bias and integrate a CW EPR sweep curve, together with a plot. (interpolation, measurement, integration)

[Y,A]=SubtractIntegrate(x,y,interpolation_points,varargin)

Filter noise and interpolate microscopy images in frequency domain by Shalin Mehta

Remove spatial frequencies beyond the optical cutoff and perform physically accurate interpolation. (microscopy, filtering, interpolation)

[out,outscale]=opticalLowpassInterpolation(in,inscale,fcut,...

y=jinc(r)

TestBench_opticalLowpassInterpolation_Airy.m

distance2curve by John D'Errico

Find the closest point on a (n-dimensional) curve to any given point or set of points (arclength, interpolant, distance)

distance2curve(curvexy,mapxy,interpmethod)

xy2sn by Juernjakob Dugge

Transform cartesian to curvilinear orthogonal coordinates, e.g. a flow-oriented coordinate system. (coordinate transforma..., earth science, interpolation)

sn2xy( s, n, centerlinex, centerliney )

xy2sn( x, y, centerlinex, centerliney )

Working with Time-Series Data in MATLAB by Abhaya

These are the example files for the webinar: "Working with Time-Series Data in MATLAB". (data exploration, interpolation, data import)

createfigure(X1, Y1)

ausmap.m

format_data.m

3D trilinear interpolation using GPU by Jun Tan

3D trilinear interpolation using GPU. 20 times faster. (3d trilinear interpol..., interpolation, interp3)

interp3_gpu(x, y, z, v, xi, yi, zi)

Interpolation Utilities by Joe Henning

A variety of interpolation utilities (interpolation, piecewise interpolati..., cubic interpolation)

baryinv(x, y, xi, c)

cakima(x, y, xi)

cbezier(x, y, xi)

Compute the value of Lagrange polynomial at given points by Hongkai Dai

The function computes the value of a Lagrange polynomial with mesh points x and mesh values y. (interpolation)

lagrangePolyVal(t,x,y)

Trapezoidal Integration by Aravazhi Anbarasu

Simple and intuitive numerical integration based on trapezoidal rule. (data import, data export, control design)

int_trapz(X,Ts)

TEMPORAL DISAGGREGATION LIBRARY by Enrique M. Quilis

Temporal disaggregation of economic time series (balancing, econometrics, time series)

[]=mtd_plot(res)

[]=td_plot(res)

[]=tduni_plot(res)

LERP: fast n-dimensional linear interpolation & extrapolation by Sky Sartorius

Interpolate from X and Y data and n-dim array. Can also extrapolate above/below X if desired. (interp, interp1, interp1q)

lerp(x,y,xi,extrapspan)

CELP codec by Sourav Mondal

This is a code to demonstrate CELP codecs of bitrate 9.6kbps and 16kbps. (celp, audio codec, lpc)

celp16k(x,N,L,M,c,cb,Pidx)

celp9600(x,N,L,M,c,cb,Pidx)

celpana(x,L,M,c,cb,Pidx,bbuf,ebuf,Zf,Zw)

Linear regression with statistics for multiple category data by Soumya Banerjee

This function does linear regression with statistics for multiple category data (OLS and RMA) (aerospace, automotive, biotech)

regress_plot_twocategories

Linearly Interpolate Triangulation by Duane Hanselman

Interpolate a triangulation based on a given triangulation matrix TRI. (interpolation, mathematics)

zi=interptri(tri,x,y,z,xi,yi)

Fit Polynomial to Data with Constraints by Duane Hanselman

essentially polyfit with many added features (mathematics, data exploration, interpolation)

varargout=mmpolyfit(varargin)

Polynomial Curve Fitting by Khaled Sharif

Will fit two sets of data to a polynomial. (curve fitting, simulation, polynomials)

fitting (x,y, max)

Spline and Piecewise Polynomial Tool by Duane Hanselman

Create, manipulate, differentiate, and integrate splines (data exploration, interpolation)

PPfun=ppcreate(varargin)

Improved 2-D Streamlines by Duane Hanselman

More comprehensive streamline computation than stream2 in MATLAB. (data exploration, interpolation)

xy=mmstream2(x,y,u,v,x0,y0,mark,step)

Creation and manipulation of Fourier Series by Duane Hanselman

Create, manipulate and evaluate Fourier Series (interpolation, data exploration)

[FSfun,Kn]=fscreate(varargin)

Contour Line Smoothing by Duane Hanselman

Smooths contour lines by fitting them with a 2-D spline. (interpolation, data exploration, graphics)

[cout,h]=contourspline(varargin)

N Dimensional Cardinal Spline (Catmull-Rom) Spline Interpolation by Dr. Murtaza Khan

N -Dimensional cubic Cardinal spline (Catmull-Rom) Interpolation (3d, interpolation, cardinal spline)

[MatNbyNPlusOne]=crdatnplusoneval(P0,P1,P2,P3,T,n)

[Pu] =evalcrdnd(P0,P1,P2,P3,T,u)

main.m

Waveform Generator GUI by Maxim Vedenyov

Generate waveformed signal and play it. Interactive GUI with movable datapoints. (waveform, gui, signal processing)

Waveform Generator GUI

bdf(ha,hfl,uf)

hfl=create_marker(ha,x,y,r,c,uf,no)

Mth Order Piecewise Spline Interpolation by Husam Aldahiyat

A GUI that plots and gives equations for variable order intermediate splines. (splines, general, gui)

Mth Order Piecewise Spline Interpolation

gsp()

Calculate Full width at half maximum (FWHM) of a peak by Ebo

Calculate Full width at half maximum (FWHM) of a peak. (fwhm, statistics, mathematics)

fwhm.m

barrel and pincushion lens distortion correction by Jaap de Vries

I = LENSDISTORT(I, k)corrects for radially symmetric distortions (image processing, mathematics, optics)

lensdistort(I, k, varargin)

Construction of cubic Bezier Patch and Surface by Dr. Murtaza Khan

Construction of cubic Bezier Patch and Surface (cubic bezier, patch, surface)

Q=bezierpatchinterp(P,varargin)

plotbezierpatch3D(P,Q)

plotbeziersurface3D(S,Q)

Temperature forecasting by Peyman

Next 24 h temperature prediction; for each 15 minutes. (data exploration, data export, data import)

Final.m

Mutual Information and Joint entropy by Amir Pasha Mahmoudzadeh

Takes two images and return the mutual information and joint entropy (image processing, interpolation, registration)

Mutual_Information=MutualInformation(x,y)

Mean Square Error by Amir Pasha Mahmoudzadeh

Takes two images (2D) and returns Mean Square Error (image processing, interpolation, registration)

MSE(Reference_Image, Target_Image)

Mean Square Error 3D by Amir Pasha Mahmoudzadeh

Takes two images (3D) and returns Mean Square Error for 3D images (image processing, interpolation, registration)

MSE3D(ReferenceImage3D, TransformedImage3D)

interparc by John D'Errico

Distance based interpolation along a general curve in space (interpolation, spline, linear)

interparc(t,px,py,varargin)

inpaint_nans by John D'Errico

Interpolates (& extrapolates) NaN elements in a 2d array. (utterly crazy memory ..., inpainting, missing values)

(nn(:,1)<1)|(nn(:,1)>n)|(nn(:,2)<1)|(nn(:,2)>m); nn(L,:)...

valid{ind}; end end

inpaint_nans_demo.m

Unbounded Resolution for Function Approximation by Alan Jennings

A continuous function is optimized for varying outputs and increasing parameterization dimension (functional, optimization, interpolation)

[Cost_out,CostGrad]=CostFunc_lwr_8(Pnt,Opt)

[Out_out,OutGrad]=OutputFunc_lwr_8(Pnt,Opt)

[PointsOut]=Fmin_ConditionNum(CovIn,N,Opt)

EzyFit 2.41 by Frederic Moisy

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

Discover Ezyfit: A free curve fitting toolbox for Matlab

about_ef (Ezyfit Toolbox)

axis0 (Ezyfit Toolbox)