How can i detecting and marking wheezes on a plot?

Question

furkan akhan 2020-12-15

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/694705-how-can-i-detecting-and-marking-wheezes-on-a-plot

评论： Star Strider 2020-12-15

>> soundData=structWheeze(2,1).SoundData;
>> plot(soundData)
>> flow=structWheeze(2,1).Flow; 
>> figure(1),hold on,plot(flow,'r')
>> legend('soundData','flow')
>> soundsc(soundData,9600)
>> grid on
>> figure(2),specgram(soundData)
>> colorbar;
WS_new_array=structWheeze(2,1).Properties.WS_new
WS_new_array =
        1063
       17565
       21359
       36899
       55411
       70245
       90088
      102232
      114892
      119569
      123811
>> WE_new_array=structWheeze(2,1).Properties.WE_new  
WE_new_array =
        7952
       19385
       26744
       45315
       61905
       77760
       94105
      111387
      117453
      122765
      126968
>> for i=1:length(WS_new_array)
startindex=WS_new_array(i)
endindex=WE_new_array()
endindex=WE_new_array(i);
plot(soundData(startindex:endindex))
pause
end

These are my code.SoundData array: A channel sound (sampling rate 9600) of the patient. Flow array: breath flow signal. WS_new_array and WE_new_array will give you start and end indexes of wheezes. When I zoom your plotted sound, wheezes will be seen between these indexes. Finally, I need to make a markup on the time-plot graph. These are what I need to do. But i could not marking on the time-plot part. What I want from you to what i should add to this code or help me where I went wrong.

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Answer 1

Star Strider 2020-12-15

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https://ww2.mathworks.cn/matlabcentral/answers/694705-how-can-i-detecting-and-marking-wheezes-on-a-plot#answer_576370

I have no idea what you are asking.

Taking a guess, to add annotations to your plot, the easiest way is to use the text function.

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furkan akhan 2020-12-15

in short i am asking how can i marking wheezes on a plot?

Star Strider 2020-12-15

在 MATLAB Online 中打开

Since you already have the indices, you can either draw horizontal lines through them, or use the text function to annotate them, or both.

Try this:

WS_new_array = [    1063
                   17565
                   21359
                   36899
                   55411
                   70245
                   90088
                  102232
                  114892
                  119569
                  123811];
              
WE_new_array = [    7952
                   19385
                   26744
                   45315
                   61905
                   77760
                   94105
                  111387
                  117453
                  122765
                  126968];
figure
plot([WS_new_array, WE_new_array].', ones(2, size(WS_new_array,1))*5, '-r', 'LineWidth',2)
grid
xlabel('Index')