断点、节点和位点
R2026b优化节点和断点
样条是在称为节点或断点的区间处联接的一系列多项式函数。
使用 Curve Fitting Toolbox™ 函数确定优化插值的节点的位置。
函数
aptknt | Acceptable knot sequence |
augknt | 增强节点序列 |
aveknt | Provide knot averages |
brk2knt | Convert breaks with multiplicities into knots |
chbpnt | Chebyshev-Demko points |
knt2brk | Convert knots to breaks |
knt2mlt | Convert knots to their multiplicities |
newknt | New break distribution |
optknt | Knot distribution “optimal” for interpolation |
sorted | 找到相对于网格站点的位置 |
精选示例
How to Choose Knots
Select and optimize knots using the optknt and newknt commands from Curve Fitting Toolbox™.
Fitting a Spline to Titanium Test Data
Use commands from Curve Fitting Toolbox™ to fit a spline to titanium test data with manual and automatic selection of knots.
