MATLAB Answers

How to change the color of my plots

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Hello everone,
I've plot my figure in matlab as follows
close all
clear all
avalues=0.3:0.01:1;
N=8000;
d=0.03;
a=avalues;
x=0.78;
y=0.81;
X=zeros(N,length(a));
Y=zeros(N,length(a));
for n=1:0.3*N
x=(1-d).*x.*exp(a.*(1-x).*((x/0.2)-1))+d.*y.*exp(a.*(1-y).*((y/0.2)-1));
y=(1-d).*y.*exp(a.*(1-y).*((y/0.2)-1))+d.*x.*exp(a.*(1-x).*((x/0.2)-1));
X(n,:)=x;
Y(n,:)=y;
end
figure (9), hold on
for n=.3*N:N
x=(1-d).*x.*exp(a.*(1-x).*((x/0.2)-1))+d.*y.*exp(a.*(1-y).*((y/0.2)-1));
y=(1-d).*y.*exp(a.*(1-y).*((y/0.2)-1))+d.*x.*exp(a.*(1-x).*((x/0.2)-1));
X(n,:)=x;
Y(n,:)=y;
plot(a,x,'.','MarkerSize',0.01)
hold on
plot(a,y,'.','MarkerSize',0.01)
axis([0.3 1 -1 1.4])
end
hold off
The output is
As we can seen, I have two figures on each other.
How can I change its color to the colors something like this?

Accepted Answer

Simon Chan
Simon Chan on 20 Sep 2021
Just put the color code for the markers. May try the following:
for n=.3*N:N
x=(1-d).*x.*exp(a.*(1-x).*((x/0.2)-1))+d.*y.*exp(a.*(1-y).*((y/0.2)-1));
y=(1-d).*y.*exp(a.*(1-y).*((y/0.2)-1))+d.*x.*exp(a.*(1-x).*((x/0.2)-1));
X(n,:)=x;
Y(n,:)=y;
plot(a,x,'r.','MarkerSize',0.01)
hold on
plot(a,y,'b.','MarkerSize',0.01)
axis([0.3 1 -1 1.4])
end

More Answers (1)

Mathieu NOE
Mathieu NOE on 20 Sep 2021
hello
I modified a bit your code to get this result :
.code :
close all
clear all
avalues=0.3:0.005:1;
N=200;
d=0.03;
a=avalues;
x=0.78;
y=0.81;
X=zeros(N,length(a));
Y=zeros(N,length(a));
for n=1:0.3*N
x=(1-d).*x.*exp(a.*(1-x).*((x/0.2)-1))+d.*y.*exp(a.*(1-y).*((y/0.2)-1));
y=(1-d).*y.*exp(a.*(1-y).*((y/0.2)-1))+d.*x.*exp(a.*(1-x).*((x/0.2)-1));
X(n,:)=x;
Y(n,:)=y;
end
figure (9), hold on
for n=.3*N:N
x=(1-d).*x.*exp(a.*(1-x).*((x/0.2)-1))+d.*y.*exp(a.*(1-y).*((y/0.2)-1));
y=(1-d).*y.*exp(a.*(1-y).*((y/0.2)-1))+d.*x.*exp(a.*(1-x).*((x/0.2)-1));
X(n,:)=x;
Y(n,:)=y;
plot(a,x,'r.','MarkerSize',15)
hold on
plot(a,y,'b.','MarkerSize',15)
end
axis([0.3 1 0 1.5])
hold off

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