How to plot 5 rows from a dataset? My dataset size is 125694. I have to plot 5 rows from there so total 5694(3470) data point.. Whenever i have plotted this each row placed above of another row. X axis range should be 0-3500 but it shown 0-700

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subhendu roy 2016-3-8

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https://ww2.mathworks.cn/matlabcentral/answers/272062-how-to-plot-5-rows-from-a-dataset-my-dataset-size-is-125-694-i-have-to-plot-5-rows-from-there-so-t

关闭： MATLAB Answer Bot 2021-8-20

 a = dlmread('EtLAPV_TextData_Class8.txt');
[m n]=size(a);
i=(a(1,:));
plot (i)
hold on
j=(a(2,:));
plot (j)
hold on
 k=(a(3,:));
  plot(k)
  hold on
  l=(a(4,:));
  plot(l)
  hold on
  m=(a(5,:));
  plot(m)
  hold on
 title('Electrode Response')
 xlabel('Measurement points');
 ylabel('Response');

I think there will be some sort of editing by which i can plot these rows only vertically !! Thanks in advance

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Answer 1

Jacky Jo 2016-3-31

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https://ww2.mathworks.cn/matlabcentral/answers/272062-how-to-plot-5-rows-from-a-dataset-my-dataset-size-is-125-694-i-have-to-plot-5-rows-from-there-so-t#answer_215812

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try the following:

 a= randn(125,694);  % change the randn(125,694)) by  dlmread('EtLAPV_TextData_Class8.txt')
new_a=a(1:5,:); % took only first five rows.
new_a=new_a';   % interchange the row with col.
new_a=new_a(:)  % make it a col. matrix/ vecor.
plot(new_a)
 title('Electrode Response')
 xlabel('Measurement points');
 ylabel('Response');