Cell-Matrix, I can't extract values

Question

Paul Rogers 2021-1-10

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/713458-cell-matrix-i-can-t-extract-values

评论： Star Strider 2021-1-10

采纳的回答： Star Strider

phi_1.fig

在 MATLAB Online 中打开

I have the figure in attached and I need to extract values.

I run this code:

F = openfig('phi_1.fig');
ax = gca;
lines = findobj(ax, 'Type','Line');
for k = 1:numel(lines)
    x{1,:} = lines(k).XData;
    y{k,:} = lines(k).YData;
end

the problem is that I don't get a vector, but a matrix with other matrix inside and I don't know how to extract the values.

For the x I don't have problems, I type:

time=cell2mat(x);

but for the y I don't know

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Star Strider 2021-1-10

See my Answer for a solution to that exact problem.

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Answer 1

Star Strider 2021-1-10

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/713458-cell-matrix-i-can-t-extract-values#answer_594908

在 MATLAB Online 中打开

Change the code slightly to:

F = openfig('phi_1.fig');
ax = gca;
lines = findobj(ax, 'Type','Line');
for k = 1:numel(lines)
    x{k} = lines(k).XData;                          % Force Row Vector
    y{k} = lines(k).YData;                          % Force Row Vector
end
xv = cell2mat(x);                                   % Extract From Cell Array
yv = cell2mat(y);                                   % Extract From Cell Array
[xvs,idx] = sort(xv);                               % Sort Ascending
yvs = yv(idx);                                      % Sort According To ‘xvs’
figure
plot(xvs, yvs)
grid