Accessing data inside a cell array using a loop

Here "data" is a cell array of size 48 x 1. Each position of the cell consists N X 2 size matrix. I want to access the data in cell and plot column 1 vs column 2 of matrix inside each cell as given by input. For e.g. If input Z=[1 2 5], I want to plot col1 vs col2 of data{1}, data{2} and data{5}.

```Z = input('input the test number\n ');

for ii = 1:length(N)

sigma(ii) = data{Z(ii)}(:,1);

delf(ii) = data{Z(ii)}(:,2);

hold on

print(sigma(ii),del(ii))

hold off

end

```

Answer 1

[Angelo Yeo]

Woud this be working for you?

% Z = input('input the test number\n   ');
Z=[1,2,5]; N = 10;
data = cell(48,1);
for i = 1:48
    data{i} = rand(N,2);
end

for ii = 1:length(Z)
    sigma(:, ii) = data{Z(ii)}(:,1);
    delf(:, ii) = data{Z(ii)}(:,2);
    
    figure;
    plot([sigma(:, ii),delf(:, ii)]);
    
end

[Nikesh Maharjan]

Hi, Angelo.

Thnx for the response.Really appreciate it. However I'm still getting an error message like

```Conversion to cell from double is not possible.

Error in untitled (line 8)

sigma(:, ii) = data{Z(ii)}(:,1);```.

I think there's something about converting from cell to double and vice versa that I don't understand. Would really appreciate if you helped me in this. Thank you