Plot specific columns in cell array

Question

Chaman Srivastava 2020-11-23

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https://ww2.mathworks.cn/matlabcentral/answers/659183-plot-specific-columns-in-cell-array

评论： dpb 2020-11-23

Hello,

I'm new to MATLAB and still learning :) I've been struggling with one such command execution.

I have a cell array c28_20chs which has 5 cells inside it as shown in the picture. I need to navigate to the individual cells and then plot col 3,4 together as x anf y axis.

Is there any structured command for it? I would really appreciate if any one could guide me.

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Answer 1

dpb 2020-11-23

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https://ww2.mathworks.cn/matlabcentral/answers/659183-plot-specific-columns-in-cell-array#answer_553703

在 MATLAB Online 中打开

for i=1:numel(c28_20chs)
  hL(i)=plot(c28_20chs{i}(:,3),c28_20chs{i}(:,4));
  if i==1, hold on; end
  if isempty(c28_20chs(i)), continue, end
end

Read the background info on cell arrays for examples and explanation of dereferencing cell arrays.

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Chaman Srivastava 2020-11-23

Hello dpb.

Thanks for the code. Its indeed plotting the data, but i get an error-"Index in position 2 exceeds array bounds". What is this about?

Also can you please provide me a link to the -"background info on cell arrays for examples and explanation of dereferencing cell arrays" or suggest some keywords for me to find the correct info :)

Thanks!