Matlab 多项式拟合、稳健滤波等实用函数

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clinspace	Curvilinearly spaced points on a parametric curve
cumsimps	Cumulative Simpson's numerical integration
dctn	N-dimensional Discrete Cosine Transform
evar	Variance estimation
fspecial3	Create predefined 3-D filters
hmf	Hybrid median filter
idctn	N-dimensional inverse Discrete Cosine Transform
imax	Interpolated largest elements in array
imin	Interpolated smallest elements in array
medfilt3	1-D, 2-D and 3-D median filtering
orthofit	Fit orthogonal polynomials to data
otsu	Data and image segmentation using Otsu's method
polycenter	Area and centroid of polygon
polydeg	Find an optimal degree for polynomial fitting
sffilt	Scalar function-based filtering
simps	Simpson's numerical integration
smoothn	Robust automatic smoothing of 1-D to N-D data