How to plot a parametric study on a single graph

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DIP
DIP on 11 May 2017
Commented: Walter Roberson on 11 May 2017
Hi, Suppose I have a code
a= [1 32 51 24 5 23]
for i=1:length(a)
c=a(i)+d;
b=a(i)+e;
end
plot(b,c)
how do I plot all 6 cases for variation of a on the same graph ?? Basically im changing the value of a and seeing how the solution changes. I want to view it on one graph.
  6 Comments
Walter Roberson
Walter Roberson on 11 May 2017
I notice that you have edited your code. Are we to assume that d and e are both vectors? If they are not then your plot(b,c) is going to be plotting a scalar against a scalar.
Note: in your loop in your altered code, you are writing over all of b and all of d in each iteration of the loop. If that is your intent then you might as well only do the final iteration,
for i = length(a)
because that would have the same effect.
I did not mention this with your original code because your original code used the new value of c in the next iteration, and so could potentially have been meaningful if c was initialized to a vector.

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Accepted Answer

KSSV
KSSV on 11 May 2017
th = linspace(0,pi) ;
figure
hold on
for i = 1:6
x = rand*sin(rand*th) ;
plot(th,x) ;
end

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