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How to continuely index a cell in a loop

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Cassidy on 16 Apr 2015
Edited: Jan on 16 Apr 2015
I am trying to create and inventory that continues to index the second column everytime it runs throught the loop. It is apart of a pushbutton call back so that everytime it is clicked it is suppose to run through the loop. It will run through but it stops indexing even after I click the push button multiple times.
function pushbutton4_Callback(hObject, eventdata, handles) % hObject handle to pushbutton4 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)
global G
if (exist('Inventory1.mat','file') == true)
found = false
for InventoryIndex= 1: size(Inventory1,1)
if compare(G,Inventory1{InventoryIndex,1})
%if match we found a match and need to increment how many we have
Inventory1{InventoryIndex,2} = Inventory1{InventoryIndex,2} + 1
found= true
%keep looking
if (found== false)
if (InventoryIndex == size(G,1))
Inventory1{InventoryIndex + 1, 1} = G
Inventory1{InventoryIndex + 1, 2} = 1
Inventory1{1,1}= G
Inventory1{1,2}= 1

  1 Comment

Jan on 16 Apr 2015
exist('Inventory1.mat','file') == true is not correct. exist() does not answer true or false but a number from 0 to 8. So better use: exist('Inventory1.mat','file') ~= 0 .
What is the problem of your code?

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