How to plot a 2D graph using for loop values?

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Hello, Could anyone tell me what the problem is in the following code?
Many thanks.
% code:
lambda= [1.5:0.005:1.6];
llambda=length(lambda);
for di=1:llambda
k(di)=2*3.14/lambda(di)
end
lambda= [1.5:0.005:1.6];
plot(lambda,k);
  4 Comments
Joseph Cheng
Joseph Cheng on 3 Jun 2015
I am trying. The main question is why is the plot in your sample code not what you're trying to get. If it is then what is the question or is the question to plot within the for loop?
sha
sha on 3 Jun 2015
Edited: sha on 3 Jun 2015
If I run the code, the following errors appear:
Error using plot Vectors must be the same lengths.
Error in Untitled7 (line 7) plot(lambda,k);
How to fix this error?

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Accepted Answer

sha
sha on 3 Jun 2015
Thanks, Cheng. I would like to plot the same thing, however. using for loop. Just curious how to plot the data using for loop? Could you help?

More Answers (2)

Image Analyst
Image Analyst on 3 Jun 2015
The code works fine:
lambda= [1.5:0.005:1.6];
llambda = length(lambda);
for di = 1 : llambda
k(di) = 2 * 3.14 / lambda(di)
end
plot(lambda,k);
It plots with absolutely no warnings or errors about different lengths. What is the actual code you ran (it's not that , that's for sure)?

jyoti mishra
jyoti mishra on 20 Feb 2018
how to plot a vector and its delayed version in matlab?

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