a queston to plot

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Rica
Rica il 18 Mar 2014
Modificato: Patrik Ek il 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

Risposte (2)

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

Francesco
Francesco il 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 Commenti
Rica
Rica il 18 Mar 2014
thanks for the answer. I dont have a as variable, but a1,a2,....a100
regards
Patrik Ek
Patrik Ek il 18 Mar 2014
Modificato: Patrik Ek il 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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