在netlogo模型库中有一个virus on a network，里面有一个代码to spread-virus" V& S' @# I' |, P% B b
ask turtles with [infected?]
9 T9 @% Q+ x- D) o/ A$ C [ ask link-neighbors with [not resistant?]
* G2 r: s# t* `+ T( d( \" V9 a* ~# o [ if random-float 100 < virus-spread-chance
! X: [0 r1 d; e0 s5 [. S! J [ become-infected ] ] ]
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这里为什么virus-spread-chance大于random-float 100,就可以判断出become-infected呢？
: ~2 f+ r4 g# I Q8 j ?" tto do-virus-checks
* @8 {" M3 p- \$ g1 y( A& V ask turtles with [infected? and virus-check-timer = 0]( K0 b2 x# e9 [
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if random 100 < recovery-chance, F8 o; V4 B/ j0 w2 R0 u$ r
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ifelse random 100 < gain-resistance-chance6 V* o) [5 B: U: k: s( x; u
[ become-resistant ] E$ ? u7 m+ i( I2 E8 f( V
[ become-susceptible ]
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end5 P! F% @4 u0 g. R9 x, A9 v
下面同样这个问题不明白
/ Q7 a& @4 `3 o4 B+ L小妹求大神帮忙！！ & F& r7 Y8 x2 ?% H. P
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发表于 2015-1-7 11:27:22
楼主