在netlogo模型库中有一个virus on a network，里面有一个代码to spread-virus
5 H8 J0 Z* a9 d# ?5 @( J. o# x, q ask turtles with [infected?]4 S9 n! @, ?8 c/ ?3 |$ t* _
[ ask link-neighbors with [not resistant?]
( i; O# j, M7 Y K7 u: R, z. L [ if random-float 100 < virus-spread-chance
% M8 l" e# z( I% q$ ]9 a# R [ 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？# V- ^) T6 K6 @: j, U# `6 b- k6 Z
to do-virus-checks& v0 A: s9 p9 ^ v0 F3 j" k: t* U
ask turtles with [infected? and virus-check-timer = 0]
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- h1 O& p6 ^- T& k) ?7 }+ L5 ^ if random 100 < recovery-chance3 E& b2 s" N+ t6 W& @
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ifelse random 100 < gain-resistance-chance' y% N! Y( K1 h$ ` F
[ become-resistant ]% _9 g! n# w1 F1 W% T$ s
[ become-susceptible ]
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end0 K! c, P$ Q7 u. K* l' Q3 E
下面同样这个问题不明白
$ \$ h' ~# R/ E/ x小妹求大神帮忙！！ ) Z% k9 F, K2 M$ B+ |! Z
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发表于 2015-1-7 11:27:22
楼主