How to plot a parametric study on a single graph

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.

[KSSV]

YOu have not defined c..what is c? You can plot different cases on figure using hold on

[Walter Roberson]

Should we assume that c has been initialized as a vector? If not then your b and c would end up as scalars and plot(b,c) would not show anything.

[DIP]

Something like this

[DIP]

its basically the same calculation, im only changing one parameter and plotting it on the same graph

[DIP]

i was looking for a pseudo code or the correct syntax

[Walter Roberson]

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.

Answer 1

[KSSV]

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

[DIP]

Thanks KSSV.