在netlogo模型库中有一个virus on a network，里面有一个代码to spread-virus
2 ^9 f9 C! q6 _4 ` ask turtles with [infected?]7 o, {+ Q* B, P: @. e4 U0 ]
[ ask link-neighbors with [not resistant?]5 @5 l5 T/ ]) _6 K8 K4 t* \8 N [- q: e
[ if random-float 100 < virus-spread-chance
/ Z! n F6 y0 F4 B# e( m7 X [ become-infected ] ] ]
3 P1 e" t9 Z9 t% send
, K _" }7 `+ R这里为什么virus-spread-chance大于random-float 100,就可以判断出become-infected呢？/ t [/ }4 t" \6 a& x/ F: p
to do-virus-checks
/ o& m8 Z4 B# _, L- k/ ` ask turtles with [infected? and virus-check-timer = 0]
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if random 100 < recovery-chance* z5 R& \. h. n+ v1 P. i9 Q m
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ifelse random 100 < gain-resistance-chance' k/ g- e; O- Q
[ become-resistant ]$ e/ l) ^2 o3 z
[ become-susceptible ]
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下面同样这个问题不明白1 ~0 O! D5 U x1 s
小妹求大神帮忙！！
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发表于 2015-1-7 11:27:22
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