Software Listing of Author : "Jean-luc Dellis"

easyfitGUI(varargin) fits real data Y = f(X) easyfitGUI open a figure with uimenus devoted to process the data. VARARGIN: one or several matrix [X, Y] having: first column = vector of the independant variable (X) second column = vector of the dependant variable (Y). The Y-data are plotted versus the X-data. for instance: x1=0:0.1:3;x1=x1(:); y1=5*x1.^1.2+1+randn(size(x1)); easyfitGUI([x1,y1]) x2=-3:0.1:3;x2=x2(:); y2=5*x2.^2+1+randn(size(x2)); x3=0:0.1:pi;x3=x3(:); y3=-40*sin(x3); easyfitGUI([x2,y2],[x3,y3]) The available uimenus are : 'SELECTLINE' uimenu Select the line to be fitted. Move the Mouse to click on the targeted line. The pointer gets a cross shape. The selected line is redrawn with 'o' markers The other lines remain with '.' markers 'express FIT' uimenu The code uses POLYFIT....

  • Platform: Matlab, Scripts

pbest=EASYFIT(x,y,varargin) fits the data Y = f(X) to a model function Y = FUN(P,X). If FUN is not given as an input argument, POLYFIT is used as the model function. Bounds on the parameters P may be set. By default a plot is generated which presents the data as well the "best" curve, confidence intervals for data% and the uncertainties for the parameters. For programmatic purposes, this graphical mode can be switched off.

  • Platform: Matlab, Scripts

SYNTAX: [p1,p2,slope,inter]=getslopeintercept OUTPUTS: P1= coordinates of the first cliked point P2= coordinates of the second cliked point SLOPE= slope of the drawn line INTER= intercept Y(X=0) WHAT ? In the current figure, you have to draw a line between 2 clicked points of a planar graph. The GETSLOPEINTERCEPT function then displays the slope and the intercept of the drawn line in a text box EXAMPLE plot([1:10],[1:10].^0.5,'-o') getslopeintercept

  • Platform: Matlab, Scripts

GETTHETANGENT draws the tangent to a curve at a point that the user chooses by a mouse-click and displays a text-box giving the slope and the y-intercept value of this tangent in the current axes. GETTHETANGENT(H) gives the focus to the axes whose the handle is H and processes in theses axes. [SLOPE, INTERCEPT]=GETTHETANGENT returns the slope and the Y-intercept of the tangent to a curve belonging to the current axes and at a point friendly choosen by the user.

  • Platform: Matlab, Scripts

v=randsampleWRW(x,k,w) Returns V, a weigthed sample of K elements taken among X without replacement X a vector of numerics K amount of element to sample from x W a vector of positive weights w, whose length is length(x) % EXAMPLE: % for i=1:100 % v(i)=randsampleWRW([0,0.5,3,20],1,[0.5,0.4,0.05,0.05]); % end % plot(v,'o')

  • Platform: Matlab, Scripts
  • Zfit
  • License: Freeware
  • Price: 0.00

Zfit(data) Plots the impedance DATA which has to be a 3-columns wise matrix [FREQ, RealZEXP, ImagZEXP]. Impedance, admittance, capacitance and modulus representations in the complex plane are then pushbutton obtainable. The others usages are described in the help lines with examples too...

  • Platform: Matlab, Scripts

The main features are: Plot. For each immitance types (Z, Y, C or M), the data can be plotted in the complex plane, as well their real, imaginary parts or their magnitude in function of the frequency (Log/Log). Simulation. The possibilities are almost infinite. Over the classical R, C, L electrical elements, one can use CPE (constant Phase Element) and even any user-defined element. Fit. ZfitGUI makes use of the simplex algorithm. One can put bounds to the parameters and vary the weight wich is defined in a matrix. Once a right model has been identified, the user would save time in using Zfit.m which is the programmatic version of ZfitGUI. Zfit is a shared file as well as ZfitGUI. This help is divided in the 6 following sections: ------------- INPUTS ------------- UIMENUS Plots Selectline Circuit Fit Options...

  • Platform: Matlab, Scripts
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