Plot data from matrix with legend name

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felix.b
felix.b 2020-4-17
评论： felix.b 2020-4-20
Dear colleagues,
how can I plot data from a matrix and have the legend entries in it automatically, too?
To make my question easier to understand I attached a code snippet:
1) What works:
Matrix = [a, A_2, 0];
%% Plot
figure
hold on
for i=1:size(Matrix,1)
plot([0,Matrix(i,1)],[Matrix(i,2),Matrix(i,3)])
end
2) Waht I want to have:
Matrix = [a, A_2, 0, 'legend entry'];
%% Plot
figure
hold on
for i=1:size(Matrix,1)
plot([0,Matrix(i,1)],[Matrix(i,2),Matrix(i,3)])
legend(Matrix(i,4))
end
Can you please give me a hint?
Best regards
Felix

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采纳的回答

Mehmed Saad
Mehmed Saad 2020-4-17
Cells are for that purpose, see help on cell
Matrix = {a, A_2, 0, 'legend entry'};
Matrix =
1×4 cell array
To access matrix first complete cell
Matrix{1,1}
it will give you a
if you want the first element of a you can access it using
Matrix{1,1}(1)
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Mehmed Saad
Mehmed Saad 2020-4-18
figure
hold on
for i=1:size(Matrix,1)
plot([0,Matrix{i,1}],[Matrix{i,2},Matrix{i,3}])
end
legend(Matrix{:,4})
hold off
grid on
felix.b
felix.b 2020-4-20
Thank you very much, Muhammad! ( I don't know why I didn't see this solution myself.)

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