# plot in same graph from a loop

1 次查看（过去 30 天）
samuel herrera2021-11-17

l = 1*10^-3;
c = 10*10^-9;
u = 4*pi*10^-7;
e = (l*c)/u;
g = (u*G)/l;
vs = 1;
f = [60 1000];
zs = 50;
long = 100;
x = 0:0.1:100;
%condicione de la carga
zl = -1.2839j;
for ii=1:length(f)
w(ii) = 2*pi*f(ii);
z0(ii) = ((1j*w(ii)*l)/(g+1j*w(ii)*c))^(1/2);
prop(ii) = (1j*w(ii)*l*(g+1j*w(ii)*c))^(1/2);
A{ii} = [(z0(ii)+zs),(z0(ii)-zs);(z0(ii)-zl)*exp(-prop(ii)*long),(z0(ii)+zl)*exp(prop(ii)*long)];
ainv{ii} = inv(A{ii});
vo{ii} = ainv{ii}*[z0(ii)*vs;0];
vp1{ii} = vo{ii}(1);
vp2{ii} = vo{ii}(2);
end
vp=cell2mat(vp1);
vn=cell2mat(vp2);
for r=1:length(vp)
vt(ii)=abs(vp(ii)*exp(-prop*x)+vn(ii)*exp(prop*x));
plot(x,vt(ii))
end
how can i plot the answears for vt(ii) in the same plot? thanks a lot

### 回答（1 个）

Prateek Rai 2021-11-21
Hi,
You can try "hold on" to retain current plot when adding new plot.
Refer to hold MathWorks documentation page to learn more on retaining current plot when adding new plot.

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