例建立图形演示系统菜单,菜单条中含有3个菜单项: Plot、Option和Quit。 Plot中有Sine Wave和Cosine Wave两个子菜单项,分别控制在本图形窗口画出正弦和余弦曲线。 Option菜单项的内容...,其中Grid on和Grid off控制给坐标轴加网格线,Box on和Box off控制给坐标轴加边框,而且这4项只有在画有曲线时才是可选的。W...
(3); % 绘制原始数据和拟合曲线 figure; plot(x_data, y_data, 'ro'); % 绘制原始点 hold on; xx = linspace(min(x_data), max(x_data), 100); plot(xx, fitted_function(xx), 'b-'); % 绘制拟合曲线 hold off; % 标注点 for i = 1:length(x_data) text(x_data(i), y_data(i)...
The MATLAB plot gallery provides examples of many ways to display data graphically in MATLAB. You can view and download source code for each plot, and use it in your own MATLAB project.
(subplot1,'on'); plot(x1,y1,'Parent',subplot1,'LineWidth',2); xlabel('$x$','Interpreter','latex'); ylabel('$y$','Interpreter','latex'); title('原始数据','Interpreter','latex'); set(subplot1,'FontSize',12,'LineWidth',2); subplot2 = subplot(2,1,2,'Parent',figure1); hold...
options = optimoptions('','','') x = fsolve(@fun,2,options ) 方程组(以包括两个方程的方程组为例) y={y1=x21+x1−6=0y2=2x22+x2−6=0 在新的m文件里,书写该fun的计算函数 functiony =fun(x)y(1) =x(1)^2+x(1)-6;y(2) =2*x(2)^2+x(2)-6; ...
(1)options=optimset(‘optimfun’) 创建一个含有所有参数名,并与优化函数optimfun相关的默认值的选项结构options. (2)options=optimset(‘param1’,value1,’param2’,value2,...) 创建一个名称为options的优化选项参数,其中指定的参数具有指定值,所有未指定的参数取默认值. ...
function out = scatplot(x,y,method,radius,N,n,po,ms) % Scatter plot with color indicating data density % % USAGE: % out = scatplot(x,y,method,radius,N,n,po,ms) % out = scatplot(x,y,dd) % % DESCRIPTION: % Draws a scatter plot with a colorscale ...
>> plot(x,y1,'y-',x,y2,'m--',x,y3,'c:',x,y4,'r-.') 函数图像 函数拟合 >> x=[0,34,67,101,135,202,259,336,404,471]; >> y=[15.18,21.36,25.72,32.29,34.03,39.45,43.18,43.46,40.83,30.75]; function [fitresult, gof] = createFit(x, y) ...
mesh(X,Y,Z) creates a mesh plot, which is a three-dimensional surface that has solid edge colors and no face colors. The function plots the values in matrix Z as heights above a grid in the x-y plane defined by X and Y. The edge colors vary according to the heights specified by ...
[t,y] = ode45(dy,[0 12],[0 1],options); figure plot(t,y) 1. 2. 3. 4. 5. 结果为: events函数解析: %function [value,isterminal,direction]=events(t,x) % 事件检查函数,此时需要做的是过零点检测 % ode45函数自动检查当value=0是否成立 ...