在netlogo模型库中有一个virus on a network，里面有一个代码to spread-virus9 a* H$ c( E% Y* w
ask turtles with [infected?]
7 R/ O3 t8 V0 `. F! f0 i [ ask link-neighbors with [not resistant?]6 f L1 {* L; d! O# H9 i
[ if random-float 100 < virus-spread-chance& `" ?& H; \8 I' [
[ become-infected ] ] ]
5 }2 ~$ H8 Z, i+ D2 i$ z. @( send t1 R# [" @' v/ O. C
这里为什么virus-spread-chance大于random-float 100,就可以判断出become-infected呢？
3 O6 Y" v, ^( h* d5 mto do-virus-checks1 c" \8 A* U/ J7 w3 a; T$ g, b/ [
ask turtles with [infected? and virus-check-timer = 0]
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if random 100 < recovery-chance) P" ~8 F5 R, O( O, L( F' x
[
1 M& }" q/ R% S0 E ifelse random 100 < gain-resistance-chance
% E1 y9 b% D$ Z. U- V [ become-resistant ]
# o5 s1 j" g; Q: K [ become-susceptible ]
k' I. | j5 A! }2 Y; D ]% f" G3 X7 h. R! G) d
]0 }, Q1 V7 Q& _( K. y
end* a% V C; X8 w0 z' F
下面同样这个问题不明白
+ m7 l f$ Q; m" M! C& w2 F小妹求大神帮忙！！ , E$ r" G: h9 D% q) K
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发表于 2015-1-7 11:27:22
楼主