MATLAB: Load real number, not integer

real number

Hi,

why is not possible to load real number? For example "3.14"???

It works only with integer.

 UserData.matrix(1,1)=num2cell(sym(char(strcat('_',get(handles.a,'String'),char(sym(UserData.matrix{1,1}))))));

Can you help me?

Best Answer

From the text of your question, I'd extect this could be a solution:

UserData.matrix{1,1} = sscanf(get(handles.a, 'String'), '%g');

Related Solutions

MATLAB: How to call a character saved in ‘uicontrol’ ‘string’

It is not clear what "It displays all the names saved in 'ConnectionObjectProperties'" means. What is "it"? The shown code looks fine (see below for a tiny change), so I assume the problem is what you display later on - but this part of teh code has not been posted.

function main
ConnectionObjectProperties = {'string1', 'string2', 'string3'};
figure;
for j = 1:length(ConnectionObjectProperties)
   X(j) = uicontrol('parent', Window23, 'Tag', 'SelectedConnectionObject',...
                    'Style', 'pushbutton',...
                    'String', ConnectionObjectProperties{1,j},...
                    'Position', [300 (600-80*j) 100 30],...
                    'callback', @DisplayConnectionObjectProperties);
end
end

Changes:

length(ConnectionObjectProperties(1, :)) creates the vector explicitely only to measure its length. Either use length(ConnectionObjectProperties) or size(ConnectionObjectProperties, 2).
Extract the string from the cell string using curly braces instead of the round parenthesis.
Giving all buttons the same tag might be the reason, why you get all strings later on. Unique tags are much better, but it is much better not to use the tags for addressing at all:

function DisplayConnectionObjectProperties(hObject, EventData)
disp(hObject.String)
end

This displays the string of the selected button. Looks easy :-)

MATLAB: Save/load button in gui

Sure

function save_params_Callback(hObject, event, handles)
   names_to_save = {'editbox1', 'editbox2', 'velocity'};
   num_to_save = length(names_to_save);
   data_to_save = cell(num_to_save, 2);
   for K = 1 : num_to_save
     thisname = names_to_save{K};
     thisvalue = get(handles.(thisname), 'String');
     data_to_save{K,1} = thisname;
     data_to_save{K,2} = thisvalue;
   end
   save('saved_params.mat', 'data_to_save');

To load:

   function load_params_Callback(hObject, event, handles)
      datastruct = load('saved_params.mat', 'data_to_save');
      data_to_save = datastruct.data_to_save;
      for K = 1 : size(data_to_save,1)
        thisname = data_to_save{K,1};
        thisvalue = data_to_save[K,2};
        if isfield(handles.(thisname)) && isa(handles.(thisname), 'uicontrol')
          set(handles.(thisname), 'String', thisvalue);
        end
     end

Best Answer

Related Solutions

MATLAB: How to call a character saved in ‘uicontrol’ ‘string’

MATLAB: Save/load button in gui

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