exporting data using xlswrite for each 24 hours?

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Abo 2016-7-8

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https://ww2.mathworks.cn/matlabcentral/answers/294357-exporting-data-using-xlswrite-for-each-24-hours

编辑： Geoff Hayes 2016-7-11

dear all, by using xlswrite('DATA', DATA, 'output_data', sprintf('A%d')); i can export my DATA to excel sheet. Since,its is a part of real-time video analysing, i'd like to save data for each 24 hours, i mean after 24-hours it can automatically export to another excel file and so on.. can you help me please

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Geoff Hayes 2016-7-11

Right, but have you written your MATLAB code to use a timer that expires in 24 hours? Please provide more details including a brief description of what code you have written and what you need help with.

Abo 2016-7-11

编辑：Geoff Hayes 2016-7-11

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thank you, mu code is kind of real time video processing, it gets snapshot for a period of time, as shown here, i'd like to save data as excel for each 24 hours, i hope to make sense.

vid=videoinput('winvideo',1);
set (vid,'ReturnedColorspace','grayscale');
vid.FrameGrabInterval=1;
framesneeded=20;
start (vid)
% time1=datestr(now,'dd-mm-yyyy HH:MM:SS FFF');
while vid.FramesAcquired<=framesneeded
     time1=datestr(now,'HHMMSS')
     data=getsnapshot(vid);
     level=graythresh (data);
     bw=im2bw(data,.08);
     ...
     ..
     DATA=[extracting some data];
      xlswrite('DATA',DATA,time1);