gsl_multifit_nlinear_trs_lmaccel2:function():Pgsl_multifit_nlinear_trs;cdecl; gsl_vector_set2:procedure (v: Pgsl_vector; i: NativeUInt; x: Double); cdecl; begin n:=300; //number of data points to fit p:=2; //parameters count x := gsl_vector_alloc(p); fdf_params :=gsl_mul...
gsl_fit_linear() 和 gsl_fit_wlinear() 分别是线性和加权线性问题的单变量拟合(即线型回归),另外 gsl_fit_linear_est() 还估计误差。多元情形为 gsl_fit_mul()、gsl_fit_wmul() 与 gsl_fit_mul_linear()。对广义的 LSF 问题,需要使用 gsl_multifit_linear_alloc() 分配 workspace,最后释放,类似的函数...
bw = gsl_bspline_alloc(4, nbreak);// allocate a cubic bspline workspace (k = 4)B =gsl_vector_alloc(ncoeffs); X = gsl_matrix_alloc(n, ncoeffs); c =gsl_vector_alloc(ncoeffs); cov = gsl_matrix_alloc(ncoeffs, ncoeffs); mw = gsl_multifit_linear_alloc(n, ncoeffs); gsl_bspl...
gsl_fit_linear() 和 gsl_fit_wlinear() 分别是线性和加权线性问题的单变量拟合(即线型回归),另外 gsl_fit_linear_est() 还估计误差。多元情形为 gsl_fit_mul()、gsl_fit_wmul() 与 gsl_fit_mul_linear()。对广义的 LSF 问题,需要使用 gsl_multifit_linear_alloc() 分配 workspace,最后释放,类似的函数...
GNU Scientific Library with CMake build support and AMPL bindings - gsl/multifit/gsl_multifit.h at master · ampl/gsl
n);return-1; }if(n != w->n) { gsl_multifit_fdfsolver_free(w->fdf_s); gsl_multifit_fdfridge_free(w->fdf_ridge); w->fdf_s = gsl_multifit_fdfsolver_alloc(w->fdf_type, n, w->p); w->fdf_ridge = gsl_multifit_fdfridge_alloc(w->fdf_type, n, w->p); ...
auto njev = fdf->nevaldf; auto naev = fdf->nevalfvv; gsl_multifit_nlinear_free(work); gsl_vector_free(initial_params); return result; } template<auto n> auto internal_make_gsl_vector_ptr(const std::array<double, n>& vec) -> gsl_vector* { auto* result = gsl_vector_alloc(vec....
import numpy as np #主要用于处理矩阵相关运算 import random #主要用于随机数处理 import matplotlib.pyplot as plt #数据可视化模块 #多项式的次数 m=10#生成样本数据点 x=np.arange(-1,1,0.02) y=[((a*a-1.55)**3+(a-0.3)**7+4*np.sin(5*a)) for a in x] #可视化真实曲线 plt....
The newgslnls-package augments the existing suite of nonlinear least squares solvers available in R by providing R bindings to nonlinear least squares optimization with theGNU Scientific Library (GSL)using the trust region methods implemented by thegsl_multifit_nlinearandgsl_multilarge_nlinearmodules...
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