(x, y, 'o', 'MarkerFaceColor', 'r', 'DisplayName', 'Data Points'); hold on; plot(xq, yq, 'b-', 'LineWidth', 2, 'DisplayName', 'Spline Interpolation with Natural Boundary Conditions'); title('Spline Interpolation with Natural Boundary Conditions'); xlabel('x'); ylabel('y'); ...
Spline Interpolation of Angular Data(角度数据的样条插值) Generate the plot of a circle, with the five data points y(:,2),...,y(:,6) marked with o's. The matrix y contains two more columns than does x. Therefore, spline uses y(:,1) and y(:,end) as the endslopes. The circle ...
(四)Spline Interpolation:spline()(样条插值) 示例代码: x = linspace(0,2 * pi,40); x_m = x; x_m([11:13,28:30]) = NaN; y_m = sin(x_m); plot(x_m,y_m,'ro','MarkerFaceColor','r');%绘制散点图 xlim([0,2*pi]); ylim([-1.2,1.2]); box on; %set(gca,'FontName',...
Spline Interpolation of Sine Data Usesplineto interpolate a sine curve over unevenly-spaced sample points. x = [0 1 2.5 3.6 5 7 8.1 10]; y = sin(x); xx = 0:.25:10; yy = spline(x,y,xx); plot(x,y,'o',xx,yy) Spline Interpolation with Specified Endpoint Slopes ...
Spline Interpolation of Angular Data(角度数据的样条插值) Generate the plot of a circle, with the five data points y(:,2),...,y(:,6) marked with o's. The matrix y contains two more columns than does x. Therefore, spline uses y(:,1) and y(:,end) as the endslopes. The circle...
f = fit(t', x', 'smoothingspline');% 绘制原始信号和拟合的包络函数 figure;plot(t, x, t, ...
。 维基百科上指定的算法是自然样条曲线的代码。 编译并运行 要进行编译,您只需要在终端上键入“ make”即可。 但是,如果您已经制作过一次,则需要在第二次编译之前输入“ make clean”。 要运行它,您需要在终端上键入“ cubic-spline-interpolation”。 参考 [关于三次样条的注释] [note1] [note1]:...
end % Spline interpolation xspi=spline(t,x,tc); % Sinc interpolation xssi=x*(sinc(Fs(1)*(ones(size(t'))*tc-t'*ones(size(tc))); ax=[1,1.5,-1.2 1.2]; subplot(4,1,1); plot(tc,xzoh,tc,xc,'r:'); axis(ax); title('Zero Order Hold'); subplot(4,1,2); plot(tc,xfoh...
Create the query grid with spacing of 0.25. [Xq,Yq] = meshgrid(-3:0.25:3); Interpolate at the query points. Vq = interp2(X,Y,V,Xq,Yq); Plot the result. figure surf(Xq,Yq,Vq); title('Linear Interpolation Using Finer Grid'); ...
interp1 performs interpolation on columns of an input matrix.ExamplesExample 1This generates a sine curve, then samples the spline over a finer mesh.x = 0:10;y = sin(x);xx = 0:.25:10;yy = spline(x,y,xx);plot(x,y,'o',xx,yy)Example 2This illustrates the use of cla...