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  • License: Freeware
  • Last update: 6 years ago
  • Total downloads: 86
  • Price: Free |
  • Operating system: Linux, Mac OS X, Win All, BSD, Solaris
  • Publisher: Salman Rogers (1 other programs)
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scripts default iconpolyfitweighted (Scripts) Publisher's description

Like polyfit.m but includes weighting of each data point.

Like polyfit.m but includes weighting of each data point.

Find a least-squares fit of 1D data y(x) with an nth order polynomial, weighted by w(x).


P = polyfitweighted(X,Y,N,W) finds the coefficients of a polynomial P(X) of degree N that fits the data Y best in a least-squares sense. P is a row vector of length N+1 containing the polynomial coefficients in descending powers, P(1)*X^N + P(2)*X^(N-1) +...+ P(N)*X + P(N+1). W is a vector of weights. Vectors X,Y,W must be the same length.

Class support for inputs X,Y,W:
float: double, single

System Requirements:

MATLAB 7.3 (R2006b)
Program Release Status: New Release
Program Install Support: Install and Uninstall

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