Plotting using multiple x-axes and y-axes.

Hi everyone, i am plotting two curves on a same figure, since the x-axis scale is different for both of them, so i am using multiple x-axes and y-axes option. I am having a problem with the axes command which gives me the following error message. *Error using axes Value must be a 4 element vector.

Only the first graph is plotting. Thank you.

figure(9);
line(x1,y1,'Color','r')
ax1 = gca; % current axes
set(ax1,'XColor','r');
set(ax1,'YColor','r')
ax1_pos=set(ax1,'Position');
ax2 = axes('Position',ax1_pos,...
    'XAxisLocation','top',...
    'YAxisLocation','right',...
    'Color','none');
line(x2,y2,'Parent',ax2,'Color','k');

Answer 1

[dpb]

...
ax1_pos=set(ax1,'Position');
ax2 = axes('Position',ax1_pos,...

ax1_pos will be empty after the above; you (probably inadvertendtly) typed set instead of get.

Try

    ax1_pos=get(ax1,'Position');

instead.

[Aftab Ahmed Khan]

Oh, thank you.