Plot from cell array

Question

Isai Fernandez 2021-4-25

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/812440-plot-from-cell-array

编辑： Adam Danz 2021-4-27

I want to plot data from cell array. I tried many ways, and I can't get it. I used plot inside and outside the loop, also scatter and stackedplot.

clc; clear variables; close all;
 
% Pregunta 01
 
filename='Test_Specimen_2.txt';
D = readtable('Test_Specimen_2.txt',...
    'Range','A10:AN76',...
    'ReadVariableNames',true);
 
i=1;
 
while i<=size(D,2)/2
    d1 = D(:,2*i);
    d2 = D(:,2*i-1);
    D1{i} = [d1 d2];
    i=i+1;
end
 
i=1;
while i<= size(D1,2)
    stackedplot(D1{i},{'STRAIN','STRESS'});
    hold on
    i=i+1;
end

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Answer 1

Adam Danz 2021-4-25

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/812440-plot-from-cell-array#answer_684475

编辑：Adam Danz 2021-4-27

在 MATLAB Online 中打开

It looks like you're trying to create a stackedplot with 2 lines per axes which is demonstrated here:

https://www.mathworks.com/help/matlab/ref/stackedplot.html#mw_77f778d8-83aa-4e0b-b891-477e2de07747

Instead of grouping columns of data in cell arrays, you just need to group the variable names together. It appears you want the lines to be grouped as [Var2, Var1], [Var4, Var3], [Var6, Var5], etc. Here's how to achieve that with stackedplot.

D = array2table(rand(10,8)); % demo table

varPairs = [D.Properties.VariableNames(2:2:end)', ...

D.Properties.VariableNames(1:2:end)'];

pairedVars = arrayfun(@(r){varPairs{r,:}},1:size(varPairs,1),'UniformOutput',false)'; %#ok<CCAT1>

stackedplot(D,pairedVars)