Using plot command in a loop
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Hey All,
I tried to change the input argument for plot command but it didn't work as I discovered that plot doesn't accept it as an input argument:
for i= 1:20
figure, plot((sprintf('Data%d',i))) , hold on; plot(f_mean*ones(length(sprintf('Data%d',i)),1),'r'); plot(sprintf('alpha_data%d',i),'g'); plot(sprintf('alpha_data_neg%d',i),'g'); hold off; axis ([0 350 0.28 0.32])
end
What can I change in my code to make it work??
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채택된 답변
Pedro Villena
2012년 10월 19일
편집: Pedro Villena
2012년 11월 8일
if you want to change the variable name in the loop, use eval command
for i= 1:20,
figure(i),
eval(sprintf('plot(Data%d)',i));
hold on;
eval(sprintf('plot(f_mean*ones(1,length(Data%d)),''r'')',i));
eval(sprintf('plot(alpha_data%d,''g'')',i));
eval(sprintf('plot(alpha_data_neg%d,''g'')',i));
hold off;
axis ([0 350 0.28 0.32])
end
추가 답변 (2개)
Robert Cumming
2012년 10월 20일
using eval is almost always a bad idea. Store your data as
Data(1), Data(2) etc..... rather than Data1, Data2 etc....
If you end up needing to use eval to solve your problem your looking in the wrong area for a solution.
Why should you not use it:
1. Its hard to debug 2. Its very slow.
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