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Function edrSelec [edrGraphicalTools v2.2]
keywords
nonlinear
title
Variable selection based on sliced inverse regression
description
Gathers several procedures to determine which explanatory variables have an effect on a dependent variable. Works whether there are more explanatory variables than observations or not. Creates an object of class edrSelec.
Function edrUnderdet [edrGraphicalTools v2.2]
keywords
nonlinear
title
EDR space estimation for underdetermined cases.
description
Gathers several procedures to estimate the effective dimension regression (EDR) space when the number of explanatory variables is greater than the sample size. Creates an object of class edr.
Function sliceMat [edrGraphicalTools v2.2]
keywords
nonlinear
title
Slicing matrix computation
description
Returns the slicing matrix required for the "SIR-I" method.
Function wavShrink [wmtsa v2.0-3]
keywords
nonlinear
title
Nonlinear denoising via wavelet shrinkage
description
Performs a decimated or undecimated discrete wavelet transform on the input series and "shrinks" (decreases the amplitude towards zero) the wavelet coefficients based on a calculated noise threshold and specified shrinkage function. The resulting shrunken set of wavelet transform coefficients is inverted in a synthesis operation, resulting in a denoised version of the original series.
Function multirunge [nlsrk v1.1]
keywords
nonlinear
title
Runge-Kutta numerical solver (single point, multivariate)
description
Solves numerically an initial conditions problem for a set of Ordinary Differential Equations (ODE) by Runge-Kutta 4 method. Integrates numerically the equations from tmin to tmax by steps of dt.
Function nlscontour [nlsrk v1.1]
keywords
nonlinear
title
Contour plot for nonlinear least squares
description
Takes as central values the results of non-linear least square fitting by the nls(base, stats) function, then draws a contour plot of the residual sum of squares function around these values.
Function frunge [nlsrk v1.1]
keywords
nonlinear
title
Numeric solution of an ODE (univariate)
description
frunge provides a sampled numeric solution for an ODE for a given set of values of the independent variable (t). Returns a series of values corresponding to each values of t
Function kmk [nlsrk v1.1]
keywords
nonlinear
title
mck-Mc Kendrick SIR system
description
a variant of sys to use in evrunge
Function dfdt [nlsrk v1.1]
keywords
nonlinear
title
Right Side of a first order ODE
description
Gives the value of the right side of a first order Ordinary Differential Equation Used in frunge (Numeric resolution using Runge-Kutta 4 metthod)
Function evrunge [nlsrk v1.1]
keywords
nonlinear
title
Numerical Runge-Kutta Solver (multi point, multivariate)
description
evrunge evaluates the solutions of a system of first order ordinary equations for a given set of values of the independent variable (generally the time).