MATLAB Examples

This is an example of how to create a plot with two y axes in MATLAB®.

Read about the yyaxis function in the MATLAB documentation. This function is available in R2016a or newer.

For more examples, go to MATLAB Plot Gallery

% Check version if verLessThan('matlab','9.0') error(['yyaxis is available in R2016a or newer. ', ... 'For older releases, use plotyy instead.']) end % Create some data for the two curves to be plotted x = 0:0.01:20; y1 = 200*exp(-0.05*x).*sin(x); y2 = 0.8*exp(-0.5*x).*sin(10*x); % Create a plot with 2 y axes using the yyaxis function figure yyaxis left plot(x, y1) ylabel('Low Frequency') yyaxis right plot(x, y2) ylabel('High Frequency') % Add title and x axis label xlabel('Time in \mu sec.') title('Frequency Response')