Display String Arrays in a Listbox

Hey Guys,

I am a Matlab-Newbie and I have a smale Problem, which I can not solve.

I have 9 String Arrays (all different size) and I want to display them all in one Listbox. The Arrays are saved in an .mat-file. So I need to Load() them and then displazy them all in my Listbox. I would be really tankful if anyone of u could help me. ( and ignore my eng.Skills)

And can u pls answer me the general Question: How can I add things to my Listbox without killing the content, which is allready added.

PS: the command '-append' means the 'save' command does not overwrite an existing mat-file. It just adds new content. Need sth like this for my listbox.

Answer 1

[Geoff Hayes]

If you want to load a listbox with the contents of 9 string arrays, then (assuming you are using GUIDE to build your GUI) you can load the listbox in your GUI/figure's yourGuiName_OpeningFcn method (where yourGuiName is the name of your GUI)

 % load the data from the mat file
 load('s1.mat');
 load('s2.mat');

 % concatenate the string array data into a cell array
 data = [cellstr(s1) ; cellstr(s2)];

 % load the cell array into the listbox (assumed to be named listbox1
 set(handles.listbox1,'String',data);

The above example is for two string arrays only. We use the cellstr on each array to convert the array into a cell array to allow for the concatenation into a cell array since that is the format for the selections into the listbox. If any of the 9 string arrays are already cell arrays, then you can ignore this conversion.

Now in order to append new data to the listbox selections, you can do the following

 % get the cell array data that contains all the selections in the listbox
 data = get(handles.listbox1,'String');

 % append the new data 
 data = [data ; cellstr('blue')];

 % reset the selections
 set(handles.listbox1,'String',data);

Try the above and see what happens!

[Max Müller]

thats the way it works. Thanks