## polyplot

Version 1.0.0.0 (166 ko) par
Easily plot linear trend lines or polynomial fits to scattered data.
1,2K téléchargements
Mise à jour 22 jan. 2015

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This function simply plots a polynomial fit to scattered x,y data. This function can be used to easily add a linear trend line or other polynomial fit to a data plot.

Syntax
polyplot(x,y)
polyplot(x,y,n)
polyplot(...,'LineProperty',LineValue,...)
polyplot(...,'error')
polyplot(...,'error','ErrorLineProperty',ErrorLineValue)
[h,p,delta] = polyplot(...)

Description
polyplot(x,y) places a least-squares linear trend line through scattered x,y data.

polyplot(x,y,n) specifies the degree n of the polynomial fit to the x,y data. Default n is 1.

polyplot(...,'LineProperty',LineValue,...) formats linestyle using LineSpec property name-value pairs (e.g., 'linewidth',3).

polyplot(...,'error') includes lines corresponding to approximately +/- 1 standard deviation of errors delta. At least 50% of data should lie within the bounds of error lines.

polyplot(...,'error','ErrorLineProperty',ErrorLineValue) formats error lines with line property name-value pairs. All arguments occurring after 'error' are assumed to be error line property specifications.

[h,p,delta] = polyplot(...) returns handle(s) h of plotted line(s), coefficients p of polynomial fit p(x), and error estimate delta, which is the standard deviation of error in predicting a future observation at x by p(x). Assuming independent, normal, constant-variance errors, y +/- delta contains at least 50% of the predictions of future observations at x.

### Citation pour cette source

Chad Greene (2024). polyplot (https://www.mathworks.com/matlabcentral/fileexchange/49119-polyplot), MATLAB Central File Exchange. Récupéré le .

##### Compatibilité avec les versions de MATLAB
Créé avec R2012b
Compatible avec toutes les versions
##### Plateformes compatibles
Windows macOS Linux
##### Remerciements

Inspiré par : Polynomial Trendlines, trend

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#### polyplot/html/

Version Publié le Notes de version
1.0.0.0