plot style of 'OutputFcn'=odeplot in odeset

The following code can plot the solution of the ode with 'odeplot' rather than using 'plot'.

options = odeset('OutputFcn',@odeplot)

ode23(@ode,[0;t],x0,options)

How to change the settings of 'odeplot', for example, how to change the marker, line width etc?

[Avni Agrawal]

Hi, can you share the whole code?

Answer 1

[Avni Agrawal]

Hi,

I understand that you want to add styling to your odeplot. Please refer to below code for modifying the settings

% Define options for ode23 with customized odeplot
options = odeset('OutputFcn', @(t,y,flag) odeplot(t,y,flag,'Marker','o','LineWidth',1.5));
ode23(@ode,[0;t],x0,options)


% Modify plot properties
xlabel('Time'); % Change XLabel
ylabel('Solution'); % Change YLabel
title('ODE Solution with Customized odeplot'); % Change Title

% Modify font size
set(gca,'FontSize',12); % Set font size for all axes labels and title

I hope this helps!

[feynman feynman]

many thanks, but when I replace 'Marker','o' with 'Marker','.', it still plots with 'o', which is the default.

[Avni Agrawal]

Can you the share entire code? It would be easier to understand and fix the issue.

[feynman feynman]

x0=0;t=1;

options = odeset('OutputFcn', @(t,y,flag) odeplot(t,y,flag,'Marker','.'));

ode23(@(t,x)1,[0;t],x0,options)

[Avni Agrawal]

x0 = 0;
t = 1;
options = odeset('OutputFcn', @(t,y,flag) odeplot(t,y,flag));
% Solve the ODE and simultaneously adjust axis font size
ode23(@(t,x)1,[0;t],x0,options);
set(gca,'FontSize',12); % Set font size for all axes labels and title
% Get handle to current axes
ax = gca;
% Find the line object plotted by odeplot
hLine = findobj(ax, 'Type', 'Line');
% Set marker properties for the line
set(hLine, 'Marker', '.', 'MarkerEdgeColor', 'r', 'MarkerSize',10);