Curves fittings

Fitting the curve

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With the mouse, drag the data points and their error bars, and see the best fit of the polynomial curve that instantly updates. You can choose the type of fit: linear, quadratic, or cubic. The reduced chi-square statistic shows you when the fit is good. Or you can try to find the best fit manually by adjusting the parameters.

File

Click here to start the simulation

Least squares regression

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Create your own scatter plot or use real-world data and try to create a line of fit. Explore how individual data points affect the correlation coefficient and trend line.

File

Click here to start the simulation