How to get an "optimal" piecewise linear spline for any functions?

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Taehwan
Taehwan 2013-9-6
回答： Greg Dionne 2016-7-8
For given f(x), x in [a, b],
I want to get a piecewise linear spline.
Then how to segment f(x) so as to achieve a good spline?
That is, how to place the knots?

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回答（2 个）

Matt J
Matt J 2013-9-6
Greg Dionne
Greg Dionne 2016-7-8
If you have R2016a Signal Processing Toolbox, you can try FINDCHANGEPTS with 'linear' to find the locations.

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