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Functions in Curve Fitting Toolbox

  • By Category | Alphabetical List
  • Linear and Nonlinear Regression

    cftool Open Curve Fitting app
    fit Fit curve or surface to data
    fittype Fit type for curve and surface fitting
    fitoptions Create or modify fit options object
    argnames Input argument names of cfit, sfit, or fittype object
    category Category of fit of cfit, sfit, or fittype object
    coeffnames Coefficient names of cfit, sfit, or fittype object
    dependnames Dependent variable of cfit, sfit, or fittype object
    feval Evaluate cfit, sfit, or fittype object
    formula Formula of cfit, sfit, or fittype object
    get Get fit options structure property names and values
    indepnames Independent variable of cfit, sfit, or fittype object
    islinear Determine if cfit, sfit, or fittype object is linear
    numargs Number of input arguments of cfit, sfit, or fittype object
    numcoeffs Number of coefficients of cfit, sfit, or fittype object
    probnames Problem-dependent parameter names of cfit, sfit, or fittype object
    set Assign values in fit options structure
    setoptions Set model fit options
    type Name of cfit, sfit, or fittype object

    Interpolation

    feval Evaluate cfit, sfit, or fittype object
    fit Fit curve or surface to data
    fittype Fit type for curve and surface fitting
    cftool Open Curve Fitting app

    Smoothing

    fit Fit curve or surface to data
    fitoptions Create or modify fit options object
    fittype Fit type for curve and surface fitting
    get Get fit options structure property names and values
    set Assign values in fit options structure
    cftool Open Curve Fitting app
    smooth Smooth response data

    Fit Postprocessing

    cfit Constructor for cfit object
    coeffvalues Coefficient values of cfit or sfit object
    confint Confidence intervals for fit coefficients of cfit or sfit object
    differentiate Differentiate cfit or sfit object
    excludedata Exclude data from fit
    feval Evaluate cfit, sfit, or fittype object
    fitoptions Create or modify fit options object
    get Get fit options structure property names and values
    integrate Integrate cfit object
    plot Plot cfit or sfit object
    predint Prediction intervals for cfit or sfit object
    prepareCurveData Prepare data inputs for curve fitting
    prepareSurfaceData Prepare data inputs for surface fitting
    probvalues Problem-dependent parameter values of cfit or sfit object
    quad2d Numerically integrate sfit object
    set Assign values in fit options structure
    sfit Constructor for sfit object
    cftool Open Curve Fitting app

    Splines

    Construction

    bspline Plot B-spline and its polynomial pieces
    csape Cubic spline interpolation with end conditions
    csapi Cubic spline interpolation
    csaps Cubic smoothing spline
    cscvn "Natural" or periodic interpolating cubic spline curve
    getcurve Interactive creation of cubic spline curve
    ppmak Put together spline in ppform
    rpmak Put together rational spline
    rscvn Piecewise biarc Hermite interpolation
    rsmak Put together rational spline for standard geometric shapes
    spap2 Least-squares spline approximation
    spapi Spline interpolation
    spaps Smoothing spline
    spcrv Spline curve by uniform subdivision
    splinetool Experiment with some spline approximation methods
    spmak Put together spline in B-form
    stmak Put together function in stform
    tpaps Thin-plate smoothing spline
    spterms Explain spline terms
    franke Franke's bivariate test function
    titanium Titanium test data

    Postprocessing

    fn2fm Convert to specified form
    fnbrk Name and part(s) of form
    fnchg Change part(s) of form
    fncmb Arithmetic with function(s)
    fnder Differentiate function
    fndir Directional derivative of function
    fnint Integrate function
    fnjmp Jumps, i.e., f(x+)-f(x-)
    fnmin Minimum of function in given interval
    fnplt Plot function
    fnrfn Refine partition of form
    fntlr Taylor coefficients
    fnval Evaluate function
    fnxtr Extrapolate function
    fnzeros Find zeros of function in given interval
    franke Franke's bivariate test function
    spterms Explain spline terms
    titanium Titanium test data

    Breaks, Knots, and Sites

    aptknt Acceptable knot sequence
    augknt Augment knot sequence
    aveknt Provide knot averages
    brk2knt Convert breaks with multiplicities into knots
    chbpnt Good data sites, Chebyshev-Demko points
    knt2brk, knt2mlt Convert knots to breaks and their multiplicities
    newknt New break distribution
    optknt Knot distribution "optimal" for interpolation
    sorted Locate sites with respect to mesh sites
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