Imperfect Plot

I have a problem for plotting so it can make a squarewaveform.

here is my code

x=0:5:5000;
a='q';
bitk = reshape(dec2bin(double(a),8).' - '0', 1, []);
stairs(handles.axes1,x(1:length(bitk)),bitk(1:length(bitk)));
xlim(handles.axes1,[0 50]);
ylim(handles.axes1,[-1 2]);

the result is the graph isn't a squarewaveform. but the plot stairs is cut at bit 8. how can I fix this problem so at bit 8 make a squarewave and the rest of plot is 0?

Answer 1

[Andreas Goser]

When I remove 'handles.axes1' from your code and execute it, I see a figure with xlimits 0:35 and ylimits 0:1. This is exactly what is represented by the data x and bitk. I do not understand "but the plot stairs is cut at bit 8".

You may look for the AXIS command?

[Adi Mico]

I've already made the GUI with handles.axes1 as my axes to view the plot. What become my problem is that the plot only plot up to x=35. I want that the last bit which the plot at x=35 as a squarewaveform.

Mr.Roberson from the other question of mine has solved this so my code become

x=0:5:5000;

a='q';

bitk = reshape(dec2bin(double(a),8).' - '0', 1, []);

if bitk(end) ~= 0

bitk(end+1) = 0;

end

stairs(handles.axes1,x(1:length(bitk)),bitk(1:length(bitk)));

xlim(handles.axes1,[0 50]);

ylim(handles.axes1,[-1 2]);

But, I want the rest of plot is 0 so it can show like a scope that view the squarewave.

[Andreas Goser]

In this case, I do not see alternatives to modify the data. PLOT, STAIRS etc. just display the data they have.