titanium - Titanium test data
Syntax
[x,y] = titanium
Description
[x,y] = titanium returns
measurements of a certain property of titanium as a function of temperature.
Since their use in References, these data have become a standard test for data fitting
since they are hard to fit by classical techniques and have a significant
amount of noise.
Examples
The plot of the data shown below is generated by the following
commands:
[x,y] = titanium; plot(x,y,'ok'), set(gca,'Fontsize',16)
References
C. de Boor and J. R. Rice, Least squares cubic
spline approximation II - Variable knots, CSD TR 21, Comp.Sci., Purdue
Univ., April 1968.
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