how to clear axis in for loop?

Hi,I have an output Panel where the images are shown .At a time 25 images can be shown.But sometimes the axes are partially filled by images and I want to delete the empty axes.Suppose 3 images are present and rest of axis are empty the code is shown below for it. This is my code:-

   > m=1;%for first axes

     for i=4:25

     cla(handles.(['axes',num2str(m+1)]));

      m=m+1;

      end

whats wrong here clearing only one axes? end

[Walter Roberson]

Is it possible that the axes have objects with handles set invisible, such as colorbars ?

[preeti]

ya set(ax, 'Visible','off') can work but dont know its working with for loop..

[preeti]

@Walter pls suggest some nice soln..

Answer 1

[Thomas Koelen]

Why would you use m instead of just using the i you already specified in your for loop?

For further work don't use i or j as variables because i and j are both functions denoting the imaginary unit:

http://www.mathworks.co.uk/help/matlab/ref/i.html

http://www.mathworks.co.uk/help/matlab/ref/j.html

So a variable called i or j will override them, potentially silently breaking code that does complex maths.

for your problem, you forgot a strcat, try again with

strcat('axes',num2str(i))

[Walter Roberson]

strcat(A,B) is not needed when you use [A,B]

[Thomas Koelen]

Never knew, I'm still new to matlab and didn't know you could do it like this :) Also had no computer to check it at the moment.

Answer 2

[Walter Roberson]

If your axis might contain some items with invisible handles and you want to get rid of the items, then you need to pass the 'reset' option to cla()

cla(handles.(['axes',num2str(m+1)]), 'reset');

[preeti]

Sir , I just need to clear axis that are empty in the output panel and sry to say reset not clearing axis in matlab.