Index exceeds matrix dimensions

After running my code I find an error that is Index exceeds matrix dimensions.My full code is here clear all clc fullpathToDll = 'Z:\Farha\2015_02_26_photometer_Datenlogger\PC-Software\CGMultChan.dll'; fullpathToHeader = 'Z:\Farha\2015_02_26_photometer_Datenlogger\PC-Software\CGMultChan.h'; fullpathToHeader; fullpathToDll; loadlibrary(fullpathToDll, fullpathToHeader); libfunctions ('CGMultChan'); %loadlibrary(fullpathToDll, fullpathToHeader,'alias','CGMultChanLib3'); TI_ms = calllib('CGMultChan','CGMultChan_SetIntTime',.02*1000); %User Defined Properties delete(instrfindall); serialPort = 'COM1'; % define COM port #

plotTitle = 'Serial Data Log'; % plot title xLabel = 'Elapsed Time (s)'; % x-axis label yLabel = 'Illuminance'; % y-axis label plotGrid = 'on'; % 'off' to turn off grid min = 0; % set y-min max = 1.5; % set y-max scrollWidth = 10; % display period in plot, plot entire data log if <= 0 delay = .01; % make sure sample faster than resolution %Define Function Variables time = 0; output = 0; count = 0; %Set up Plot plotGraph = plot(time,output,'-mo',... 'LineWidth',1,... 'MarkerEdgeColor','k',... 'MarkerFaceColor',[.49 1 .63],... 'MarkerSize',2); title(plotTitle,'FontSize',25); xlabel(xLabel,'FontSize',15); ylabel(yLabel,'FontSize',15); axis([0 10 min max]); grid(plotGrid);

IP = calllib('CGMultChan','CGMultChan_Connect','192.168.100.158');%Connect to Data Loger if (IP == 0) end out = instrfind('Port','COM1');

%Open Serial COM Port s = serial(serialPort);

set(s,'BaudRate',57600,'DataBits', 8, 'Parity', 'none','StopBits', 1, 'FlowControl', 'none','Terminator','CR'); set(s,'Timeout',10); disp('Close Plot to End Session'); fopen(s); TI_ms = calllib('CGMultChan','CGMultChan_SetIntTime',.02*100); clear pBuffer tic while ishandle(plotGraph) %Loop when Plot is Active BufferSize=16; pBuffer = libpointer('singlePtr',zeros(BufferSize,1));

data = calllib('CGMultChan','CGMultChan_MeasureAll',pBuffer);%Measurement output = pBuffer.Value; %Read Data into the Buffer

    if(~isempty(output) && isfloat(output)) %Make sure Data Type is Correct        
        count = count + 1;    
        time(count) = toc;    %Extract Elapsed Time
        data(count) = output(1); %Extract 1st Data Element         

        %Set Axis according to Scroll Width
        if(scrollWidth > 0)
        set(plotGraph,'XData',time(time > time(count)-scrollWidth),'YData',output(time > time(count)-scrollWidth));
        %set(plotGraph,'Xdata',time,'YData',output);
        axis([time(count)-scrollWidth time(count) min max]);
        else
        set(plotGraph,'XData',time,'YData',output);
        axis([0 time(count) min max]);
        end

        %Allow MATLAB to Update Plot
        pause(delay);
    end
end

%Close Serial COM Port and Delete useless Variables fclose(s); clear pBuffer

clear count result delay max min plotGraph plotGrid plotTitle s ... scrollWidth serialPort xLabel yLabel;

calllib('CGMultChan','CGMultChan_Disconnect');%Disconnect from Data Logger Error is in the line 71 set(plotGraph,'XData',time(time > time(count)-scrollWidth),'YData',output(time > time(count)-scrollWidth));

[Jan]

The code is unreadable. Please use the "{} Code" button to format it. Then edit the question and add the complete error message, such that we do not have to guess the line, which fails.