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- function [x,y]=titanium
- % TITANIUM Test data set; difficult to model.
- %
- % [x,y] = titanium
- %
- % returns the data points of the Titanium Heat data which give a certain
- % property of titanium as a function of temperature and which have been
- % used extensively as test data for fitting by splines with variable knots.
- % Copyright (c) 1990-92 by Carl de Boor and The MathWorks, Inc.
-
- x=585+[1:49]*10;
- y=[.644 .622 .638 .649 .652 .639 .646 .657 .652 .655 ...
- .644 .663 .663 .668 .676 .676 .686 .679 .678 .683 ...
- .694 .699 .710 .730 .763 .812 .907 1.044 1.336 1.881];
- y=[ y ...
- 2.169 2.075 1.598 1.211 .916 .746 .672 .627 .615 .607 ...
- .606 .609 .603 .601 .603 .601 .611 .601 .608];
-