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a queston to plot

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Rica
Rica on 18 Mar 2014
Edited: Patrik Ek on 18 Mar 2014
hi all
i have variables : a1, a2, ...........................a100
i want to plot them in one plot: i wrote this program to load them
for i=1:100
load (['a' num2str(i) '.mat'])
end
what schould i write in the same plot to get the plot of all elements in the same plot?
thankl you

Answers (2)

Chandrasekhar
Chandrasekhar on 18 Mar 2014
for i=1:100
load (['a' num2str(i) '.mat'])
hold on
end

Francesco
Francesco on 18 Mar 2014
figure(1)
for i=1:100
load (['a' num2str(i) '.mat'])
plot(a)
hold on
end
hold off
However the problem is the color: you can try to build a 100x3 matrix containing the values of the colors you want but it is too long plus for a 100 plots you might get colors that are too similar
  2 Comments
Patrik Ek
Patrik Ek on 18 Mar 2014
You can try
plot(eval(['a' num2str(i) '.mat']));
It is said that eval may give the wrong result sometimes, but it have not happened for me yet. However, if you want to do something else that is more safe you can do
q = load (['a' num2str(i) '.mat'])
qnames = fieldnames(q);
plot(q.(qnames{1}));
or you can search for a replacement for eval.

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