tic
clear
clc
n=1000;?%vertex?of?the?network
p=0.01;?%the?probability?of?link
%%%%%%%%%%%%%%%%%?生成一個N個節(jié)點連接概率p的隨機圖網(wǎng)絡(luò).
A=sparse（nn）;
for?i=1:n-1
????for?j=i+1:n
??????
????????if?rand???????????A（ij）=1
??????A（ji）=A（ij）;
????????end
????end
end
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
for?y=1:100
??S=zeros（1n）;?
??R=unidrnd（n11）;????????????%%%%%%%%%%%%%選一個初始感染者
??S（R）=1;
?for?t=1:150%%%%%%%%%%%%%%%傳染病毒
??????for?i=1:n
??????????if（S（i）==1）?%%%傳染者以P幾率傳播病毒，易染者變?yōu)椴《緜鞑フ?br/>????????????for?j=1:n
????????????????if（A（ij）~=0&S（j）==0）
????????????????????r1=rand（1）;
????????????????????if（r1<0.02）??
????????????????????????S（j）=1;
????????????????????end
????????????????end???
????????????end????????
??????????end????????
??????end

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????3888??2011-04-09?21:21??ERSWBA.m