Use polyval with four inputs to evaluate p with the scaled years, (year-mu(1))/mu(2). Plot the results against the original years.

This example shows how to represent a polynomial as a vector in MATLAB® and evaluate the polynomial at points of interest.

This MATLAB function returns the coefficients for a polynomial p (x) of degree n that is a best fit (in a least-squares sense) for the data in y.

Thread-Based Environment Run code in the background using MATLAB® backgroundPool or accelerate code with Parallel Computing Toolbox™ ThreadPool. GPU Arrays Accelerate code by running on a …

Utilizzare polyval con quattro input per valutare p con gli anni scalati (year-mu(1))/mu(2). Tracciare i risultati rispetto agli anni originali.

Utilice polyval con cuatro entradas para evaluar p con los años escalados, (year-mu(1))/mu(2). Represente los resultados con respecto a los años originales.

This portion of the example applies polyfit and polyval to the census sample data to produce confidence bounds for a second-order polynomial model. The following code uses an interval of ± 2 Δ, which …

After you obtain the polynomial for the fit line using polyfit, you can use polyval to evaluate the polynomial at other points that might not have been included in the original data.

[y,delta] = polyval(p,x,S) は、 polyfit で生成されたオプションの出力構造体 S を使用して誤差推定値を生成します。 delta は、 p(x) に沿って x における将来の観測値を予測する場合の標準誤差の推定 …

Dieses Beispiel zeigt, wie Sie ein Polynom als Vektor in MATLAB® darstellen und das Polynom an gewünschten Punkten auswerten können.