PowerPoint presentation add images in loop from multiple files

Trying to write a GUI that goes into a folder and creates a powerpoint of each file into one large powerpoint using presentation generator and a Slide Master I created.

The problem I'm having is with plots/images. It persists in using the last plot created to replace all image content placeholders. I have tried multiple ways to loop through all with the same results. This is my latest attempt (using a slide master)

   %%  Create presentation....  
    for ii = 1:2  % this number will eventually be for the number of files in specified folder
        
        slides = Presentation(slidesFile,slidesFile);       % use pp just opened as new master
        slides.OutputPath = fullfile(outdir,slidesFile);    % where to place new Presentation
        slides.TemplatePath = slides.OutputPath;            % where to get template
        
        %%  Slide 1
        images = {};
        
        slide = add(slides,'S1');
        
        %Title Change
        iTitle = sprintf('Run Profile # %d',ii);
        replace(slide, 'S1_Title',iTitle);     % this works perfectly fine
        
        
        %%% %Add plots to slides
        %% To keep things simple I have been using simple plots but will eventually plot from each file
        
        t = [55 55 621 946 168 ]';
        p = [64546 4654 64546 64546 13113]';
        
        % Plot
        plot(t,p,'bo');
        
        title(sprintf('Plot version: %d',ii));   %works perfectly fine   
        ylabel('yy');
        xlabel('xx');
        
        % convert plot to immage
        img1 = sprintf('myPlot1%d.png',ii);     % works perfectly fine.  I can see my plots
        saveas(f,img1);
        
        
        %  Replace the Content placeholder by the plot
        images = [images {img1}];
        replace(slides, 'S1_LeftPic', Picture(img1));    % Does not work.  will put last plot image in both slides 
        
        
        close(slides);  % I've put close slides both in and out of loop with same results
        
    end
    
    rptview(slides);

In debug mode it will show the correct image but puts last plot in both slots when finished. But will change the Title of slide correctly? I've tried just looping all in one go and this version which is opening and closeing and appending a pptx.

Answer 1

[jennier hollinshead]

Guys.

I figured it out.

I feel so dumb now

        replace(slides, 'S1_LeftPic', Picture(img1));    % Does not work.  will put last plot image in both slides 
        
        %       it was that silly little 's' the end of slide!!!!!!!!!  ugh  :
        replace(slide, 'S1_LeftPic', Picture(img1));