在netlogo模型库中有一个virus on a network,里面有一个代码to spread-virus
/ c3 k7 i) V; i& N7 t# C ask turtles with [infected?]# M4 t9 Q+ q/ r
[ ask link-neighbors with [not resistant?], K( @/ ^3 i0 P8 l$ b$ R2 \
[ if random-float 100 < virus-spread-chance
, H/ K1 ^. F: e8 d& ~0 M, X& K: F [ become-infected ] ] ]4 l8 _8 \2 J: s6 V8 Q$ r
end( Y3 k" Q1 l0 z0 y; S( y; W
这里为什么virus-spread-chance大于random-float 100,就可以判断出become-infected呢?
* R. [: _, x1 Mto do-virus-checks
- L) } ^/ Y* n: b! } ask turtles with [infected? and virus-check-timer = 0]
) {- h3 w$ p8 k+ w3 q" W [
0 d9 Z" ~' n6 a& V if random 100 < recovery-chance( O. H# a3 ~# @; [3 o
[7 B% u7 t9 {+ ]+ e& {) ?2 G
ifelse random 100 < gain-resistance-chance
# `9 o( t r0 I; E: a [ become-resistant ]
9 r# N, ^1 e/ p6 q8 z3 h [ become-susceptible ]1 ~" H" h. l7 ?/ X1 Q
]
) f8 t- D2 p: e+ @" x+ } ]
% l- o& {* B, r! hend
g# T9 H! y0 ~, W9 ?% |% J下面同样这个问题不明白
& g( C3 e- s; t e小妹求大神帮忙!!
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