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楼主 |
发表于 2008-3-18 13:10:54
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你好,这是我现在正在写着的程序,以上问题就在其中,请多指教& C. y* T4 y2 h* f8 V+ g# V
globals[
1 S; a3 h- @3 J, j$ j9 r, R5 k1 Qxmax" v4 I5 t, G. X9 t, m( l; |' t3 H3 W
ymax
' Y0 A1 j: v: x4 W4 Mglobal-reputation-list
9 X+ f; w k, n' e; U) P
+ D1 G8 Y. }& i0 N8 g# V;;每一个turtle的全局声誉都存在此LIST中# E+ \4 w a: ^% Q
credibility-list
% N: F0 G5 X. g;;每一个turtle的评价可信度+ D) }% G# v1 q r& L; b
honest-service
9 [7 `2 J7 n3 H0 B0 `9 Y r# E: ?7 sunhonest-service
+ s+ X% e$ R4 zoscillation
2 `2 l6 q5 X' x- ^% j hrand-dynamic
+ X) S, P+ u( X]0 Z; o9 e8 W% W* ^: L9 u$ m
8 j- Y: W" G0 u& \4 V4 p6 Z
turtles-own[ a$ g( ^+ X. J+ R5 Q2 o' T. P% k
trade-record-all
7 `7 O2 y1 H6 x% d2 f;;a list of lists,由trade-record-one组成( }4 }+ i2 F+ i0 I% H9 r. h
trade-record-one3 |$ Y* n! ~7 b; e3 ?
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
, e9 `5 C" E! z. p; W% q& Q- H( B8 N' H, b9 ^
;;[对方turtle的编号,交易总次数,交易总金额,[本次交易的时间,交易金额,得到的评价,给出的评价,评价时间,此次交易后相对于对方turtle的局部声誉]]
$ Y% V, J7 T% D4 J# Ntrade-record-current;;list,trade-record-one中的这个list,作为暂存用,[本次交易的时间,交易金额,得到的评价,给出的评价,评价时间,此次交易后相对于对方turtle的局部声誉]
" f" L: _; ] C f( jcredibility-receive ;;list,他每个turtle还需要有一个存储其他turtle对其评价质量进行评价的list' j6 @; Z1 j. C" e( b6 x9 F
neighbor-total
2 @( k/ Y! A. u5 f/ ^& O5 `;;记录该turtle的邻居节点的数目
4 z1 f1 A D0 {6 O- X2 otrade-time
% \) l5 O8 e8 t; m;;当前发生交易的turtle的交易时间' X% u1 y* b7 m, p7 Z
appraise-give
. v) Z9 @; S" \. f5 U;;当前发生交易时给出的评价
* T7 Q5 m; c% a; X2 X) @3 u( d! }appraise-receive2 {8 I- G f" }) i2 G8 g3 G" S
;;当前发生交易时收到的评价
0 n* H6 ?# _/ ]) qappraise-time
; ~; {- r5 _% f, j2 t: F0 s;;当前发生交易时的评价时间
5 k4 R; q, r& [, B* R# blocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
% D5 k- L3 c* W: o1 d8 ?% I: Btrade-times-total( J2 \: U' G2 d
;;与当前turtle的交易总次数) N ]; K+ m0 C: \7 d3 @+ ?
trade-money-total6 i: T: L; B! v. B) }) w' Y
;;与当前turtle的交易总金额
8 T9 _/ w# s; zlocal-reputation. @4 w1 u# \: z0 {4 J' D
global-reputation% v) }2 V! P" `5 `* ^7 E* T( a
credibility- L( g A- y# N
;;评价可信度,每次交易后都需要更新% n- t* R- F9 }' G: y5 V! R" }
credibility-all
1 f, T1 F# J2 y3 R1 `' U;;a list of lists,由credibility-one组成。[[1对j的评价质量的评价][2对j的评价质量的评价]……[i对j的评价质量的评价]……],其中一共有people项,根据9 i2 Y3 |' d, x( b; s& k4 d
1 F$ s5 f) d8 b! }. \
;;turtle的编号对号入座,对于其自身的编号,在计算用到的时候再进行剔减,初始值均为0.5+ `- c3 w2 F' z1 f! j) g4 b
credibility-one
" c3 q/ ^" _, I, H9 t;;a list [i对j给1的评价的质量评价,i对j给2的评价的质量评价……],其中一共有people项
% ~* ?3 r' g/ H2 v( Z4 m# Gglobal-proportion5 q( F) E/ v- \9 I, a
customer
$ h1 v9 C" U J( scustomer-no
6 ]" @: b6 Q1 B3 Ktrust-ok8 T3 x, U$ G7 X2 b+ e( V
trade-record-one-len;;trade-record-one的长度8 k a/ X- [- h5 {" G
]
+ Q9 B, l4 S. g; X7 q
5 c. ?# I5 Y+ B* X9 p4 z;;setup procedure
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to setup0 F, E$ y. l, m: e# s
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ca5 d, K" z7 X! b& o7 H; U
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initialize-settings' K. |( u' o5 v7 o y6 ?1 d
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crt people [setup-turtles]
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reset-timer
1 k6 Z6 n* O" Y, \5 K6 i w: ~* t" `
9 u9 C Y3 ~2 ?3 z# Vpoll-class0 p4 S+ H# p* j# t
- t* ?: Z: v" g7 e0 r
setup-plots4 }" p2 s5 I* h L, S* S
0 _# S$ w4 b* e& u
do-plots' C- K6 |, e' ]- X8 N* `/ |
end% C6 m5 n. Q& }4 l( i8 p" f
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to initialize-settings
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8 A: i2 M9 @. Jset global-reputation-list []7 o S9 `1 j/ C4 g& J6 o
0 v) j" v4 X" ^
set credibility-list n-values people [0.5]
' l# _6 H8 w- U4 m* F8 G3 {$ @. _2 D
set honest-service 0
* c5 Z! w+ O8 t3 k) ]
2 H4 Z7 a# r4 H6 G+ g9 Lset unhonest-service 0( n! R: T: G% U; J
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set oscillation 0
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set rand-dynamic 0# Y, q4 s( Z+ \) E. l2 C( t
end
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to setup-turtles
; I* d9 B( r3 p) B5 a1 z0 _set shape "person"
0 \: Y+ ]6 c' p# Q$ Psetxy random-xcor random-ycor6 J8 A+ m( \/ o' W1 o- b1 W7 |( s
set trade-record-one []8 P$ j8 k- [8 f. v7 N+ F
5 q6 w$ K) z/ H( u: w' ]
set trade-record-all n-values people [(list (? + 1) 0 0)]
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set trade-record-current []$ z8 { B) k: n) @) }
set credibility-receive []
?) }$ b3 e fset local-reputation 0.5
$ S Q% t) K Oset neighbor-total 02 z+ Y. K+ ^/ P
set trade-times-total 05 S! C, E3 Z+ l) y8 x& J1 c. E
set trade-money-total 0" s! _, m0 z, C8 C
set customer nobody% }- d9 @9 O) m9 ^. A+ T/ V
set credibility-all n-values people [creat-credibility]
! {% t$ [* Q3 ]* b! u- Yset credibility n-values people [-1]
D- h# T: @3 z* wget-color7 S, z0 H' x% N1 d; r# l
G; x3 h) ?! l) b' E6 S: C# N8 Mend
3 w0 x+ M0 P, l; o6 X* Y/ L4 N( K0 x9 i3 `
to-report creat-credibility# |7 a' c' ^: u$ e
report n-values people [0.5]
; w j. l4 i0 Y+ B5 Kend
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to setup-plots
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set xmax 30
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set ymax 1.0% u: z, }$ ^$ k6 V5 _* d
3 F, h/ |! g8 q5 R2 e. ^2 S8 hclear-all-plots5 ~$ n0 ?0 ]: d
4 e0 [8 \ d4 D) w6 H* Dsetup-plot1. S! s; p. T5 P# J3 u
9 }% P5 G" F% c1 i( U: \; {setup-plot2. H- T) S" Z+ E2 C5 ?/ u
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setup-plot3
6 B4 T( P# \3 e+ s/ {end
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;;run time procedures
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- t. J' S0 B1 Tto go
+ }* T p0 m' l/ s1 |
' ?1 ~8 Q9 O1 Jask turtles [do-business]
8 B0 n+ u* V1 t) Iend$ s3 t8 B- t6 ~
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to do-business $ [, E0 O3 j/ i( z* P- F& Y* O4 n
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4 V- o9 i& V; r% ?2 _; urt random 360, k6 ~ N- _" t$ }3 V1 M- D
$ r, U5 B, o8 ?9 C5 mfd 13 G8 g0 d+ F' V5 D1 J
3 q& `6 D5 e4 `( [; ?% Sifelse(other turtles-here != nobody)[
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* k; h& G ?9 }$ T2 f8 c# bset customer one-of other turtles-here
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3 F: D6 I2 v* u& ~. k;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)) d2 v# y+ O) c; R" h: G3 G! ]
[trade-record-all]of self i9 E5 ~5 Z+ [# @) ]7 E
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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m# L$ }( r6 Qset [trade-record-one] of customer item (([who] of self) - 1)! ]: Q0 N$ |- P/ P. T5 f, k
[trade-record-all]of customer
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; [/ ^- t8 ^# c: Y1 I7 `0 P& qset [trade-record-one-len] of self length [trade-record-one] of self& G S1 T' S m4 v! M+ |
: a3 M" H F, v0 s6 U, \7 Hset trade-record-current( list (timer) (random money-upper-limit))
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7 k& k# ?9 t$ F2 ?ask self [do-trust]. ~ `& R1 f! t7 r9 o( q, T ?
;;先求i对j的信任度
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if ([trust-ok] of self)
: e3 ?# i& q6 a9 L;;根据i对j的信任度来决定是否与j进行交易[
5 f* }! j5 x/ v0 I9 d+ T# Oask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself' R1 Z7 \, O0 n. Z4 Z" M' D8 S
8 ]( G! o$ x3 ^/ W6 c- t" ~
[7 d- @( L, G; i# [. {
[- r: N, }. N3 Jdo-trade6 `# P" P8 c+ @3 v& h) e2 q
. r( [7 c5 Z% A/ B8 q3 i$ @update-credibility-ijl
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0 I6 U2 y+ ~1 O( I; }# Bupdate-credibility-list
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$ ] L8 X$ T1 E* r7 F5 g
; w/ d1 @" B8 W* S8 Jupdate-global-reputation-list6 S' @2 O4 M) i9 w( w' ^
. L1 Y; W5 i \5 i( }
poll-class
: n8 @8 {! S5 ?5 I" c; Y/ n! K* R7 s! |% m2 i% j! g5 t
get-color+ }" U6 l% P& ]( X! j/ m/ j( R2 v
: S9 P+ x3 i3 k& l3 E
]]
8 o; t3 \7 |+ h
* j! [* m/ B6 e- J. X% o: Y;;如果所得的信任度满足条件,则进行交易3 p+ N+ w' a% k9 {' K& Q: F
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$ T. m8 @+ b( W: ] i* B
rt random 360
^5 M/ r. F( ~7 N7 K: q4 w! q/ z% W, G& b
fd 1$ Y2 v0 Z: \- C( B
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to do-trust ! T( S O! v- @* F% x0 I/ T8 p
set trust-ok False
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, b8 x. l: @) nlet max-trade-times 0
9 \. W5 U+ }$ Z6 L5 h3 E" q: ~6 C( nforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]1 k9 {' ^, p# ?8 B' T8 I! Y2 p* {) i
let max-trade-money 0
h5 P7 B# ~/ Z/ y$ N Fforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]) a. W- \& M# |8 A- @6 \, o
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
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+ G4 b: y" w' B; k2 q& x8 f5 w4 z8 I' Q7 P$ @6 B, |
get-global-proportion; q' } ~2 ?2 }2 q$ S7 O% C% H% \7 h
let trust-value
& ~$ N& d; \6 ~8 W. K( mlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list), s7 P7 ^+ M) p' e! R2 P3 l
if(trust-value > trade-trust-value)
2 r* f: n9 |* B[set trust-ok true]- Y% A G# m k, _7 L g0 N
end; @! s2 Q2 n y2 S1 l/ C
/ K- P7 G' Y+ [; ?4 V& K: _to get-global-proportion2 B0 M% z: ^- T! M/ T9 Z
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)4 {. k# J1 _0 j0 B* ?* Y
[set global-proportion 0] H' E0 q( j) ?" ?% N0 i% T
[let i 07 s+ p; J* {: E6 O! w6 N6 S+ o
let sum-money 0
* C- V# n6 Q' v' u3 ^while[ i < people]
9 ~' E! W7 x7 [* J" \[
/ o5 B8 M/ ~: T2 Gif( length (item i
6 `6 n) \) c8 K[trade-record-all] of customer) > 3 )% W7 {; K9 I) m A4 i6 G# u) S0 K( }% k; i" J
[5 `6 H- b+ V3 P
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
" \2 v1 c4 h; f]
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6 ]. U4 j+ u4 G) N/ jlet j 0
1 ~' s. t# {) I; b! Y; j4 I( Slet note 0
( Y2 D! C8 m) [& |6 [while[ j < people]
) ^- f/ s! _! v. ?. Y# K3 \[! Y* |" H7 @6 c
if( length (item i! k# R3 w2 L4 }3 M
[trade-record-all] of customer) > 3 )1 ~/ u$ U( {( J( D/ J4 g
[1 X+ [$ W, p- F. s1 w8 r1 R2 F' V
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)+ T" h/ {& U+ {2 e1 F/ }5 | j
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
0 ^5 X: L0 Q D0 {# G[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]6 P5 _' G* }6 o) K/ u# t. Y
]
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set global-proportion note
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* s& }" k# h7 |* w6 Dend) ` E& Y2 g' H$ q* z/ t+ y; G
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to do-trade
8 q* w: Q5 r$ k& y. y! ^;;这个过程实际上是给双方作出评价的过程
* V5 q: O j' { Jset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
/ [% s# _* q3 u+ q; U5 L# N8 u5 cset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
! I6 q& v: ~/ L0 W% }8 [set trade-record-current lput(timer) trade-record-current
9 V- v& r( s; t7 y3 `& f' w;;评价时间) i0 y ] k* K- }9 g9 d& i
ask myself [
2 |2 d2 K# F8 B3 o0 C4 ^5 ^update-local-reputation3 J+ B/ D, c# H4 w+ ]' ~9 h" V& j
set trade-record-current lput([local-reputation] of myself) trade-record-current+ o9 U5 l5 E% w& ~" \
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set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
0 B3 Z2 X# b& C" @3 V;;将此次交易的记录加入到trade-record-one中6 N' M4 f, F. D9 r; Y4 X a
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
5 X+ N' B- g' {0 V0 A( Plet note (item 2 trade-record-current )
$ @0 b: z; G5 E- ?1 {* r- Jset trade-record-current
) B4 F! [% M' [0 q5 X(replace-item 2 trade-record-current (item 3 trade-record-current))
6 R3 P! Z5 ?: T. Rset trade-record-current- A3 k5 s6 x; j
(replace-item 3 trade-record-current note). _- Y' r4 |) m" E- m( m7 Z
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ask customer [4 _ P3 F2 ]0 L ^! r* K
update-local-reputation0 Y# w2 B# E7 e5 e* D
set trade-record-current
; |4 S; n! k. S5 P(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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A. |# T7 V2 X$ {/ W/ R6 i- M( Y7 N, z) w, u: l
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
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set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
* ?7 ^5 H) |- T( [5 K;;将此次交易的记录加入到customer的trade-record-all中
. q0 U3 e, l wend
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+ v" N1 F4 O y7 Yto update-local-reputation+ @. _2 w! u4 C* V ^& b7 V0 n
set [trade-record-one-len] of myself length [trade-record-one] of myself% L, E- V5 d( v2 M1 q
( L$ E. r" @2 ?- q, q9 i
! y/ p+ ]6 V/ `8 n; U6 g;;if [trade-record-one-len] of myself > 3
) k, s/ J8 ?- L$ i5 f4 oupdate-neighbor-total, E9 I2 D/ w, Q; g
;;更新邻居节点的数目,在此进行
' g( X: l3 A5 W' m% Elet i 3
1 V2 K9 J" T2 j/ ]let sum-time 0
" d& j6 _' a4 x- E# s. Zwhile[i < [trade-record-one-len] of myself]
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( h, U7 _- _- ]( L* h/ |set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
% A4 @+ [5 F' E; L4 ]# fset i6 E5 ^! V9 i$ N6 w2 v
( i + 1)
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let j 3 h- G3 R! z% _; o+ m5 p2 d
let sum-money 0$ l) K& Y. ^/ n) e& t0 @: C2 I
while[j < [trade-record-one-len] of myself]% ?7 p" }& d' c0 b& g) ^
[4 l2 I4 |' \+ t
set sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
9 i U# a% o1 L$ Q% z# G$ g4 c3 eset j
5 t: y: } W3 w. b( j + 1)" Y: x: n1 X" u o4 \$ _
]% f# c5 W/ |) S( B: a; w' ~
let k 3 ~/ _5 F: q6 }2 a2 A( I$ f3 H) Y
let power 0 Z5 N8 g& g2 x3 q Z6 S
let local 0" r' b4 `& {' Q
while [k <[trade-record-one-len] of myself]
1 j& n$ I, ?. b8 [1 y0 \[
1 C# x2 Z# j Pset local (local + (item 0 (item k [trade-record-one] of myself)) * (item 1 (item k [trade-record-one] of myself)) * (item 2 (item k [trade-record-one] of myself)) / sum-time / sum-money) & W) Z1 C' ~& `+ p8 H' [/ i
set k (k + 1)* o+ Y7 i6 _% S, ~
]
% |3 F+ n! O2 h# m1 S M8 ]6 Tset [local-reputation] of myself (local)4 ?5 {$ p; Q/ h. q
end5 g# l; n2 T* G! ~7 F, e
; I6 h* L2 O% m5 b. a- r7 {to update-neighbor-total* ^2 S; P( Q% `# z) f$ R3 U! ]- r
" N% g, R7 |! Y9 }! I) yif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]" ?) T% i! M% x; U2 m, O
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end
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to update-credibility-ijl
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;;思路:每一次,当一个turtle发和另一个turtle成功发生交易作出了评价之后,就去搜索本次交易对象的邻居节点,对这些邻居节点的评价质量作出评价。; G3 F" q2 B$ [
let l 0
/ q& ]6 E; x1 ]5 R. mwhile[ l < people ]
, g1 {. A2 q, Y" z0 b;;对j的邻居节点的trade-record进行扫描,以对j的邻居节点的评价质量进行评价
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0 I3 M3 H; d8 t$ r6 \7 a& Tlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
- R% ^6 t/ A' R$ s7 J, qif (trade-record-one-j-l-len > 3), S+ S- P6 I2 c
[let trade-record-one-j-l item l ([trade-record-all] of customer);;暂存那个评价质量正在被评价的turtle j的与l的trade-record-one% \/ a; b. E2 V! n! y
let i 3( J& Q# K5 h: U
let sum-time 0
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[+ h1 O& P1 d1 N$ {4 n; l
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
) ^2 [5 l# [# o# _; p/ Wset i2 n. M% m \; ]6 ?. ?( T6 m' Z
( i + 1)
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let credibility-i-j-l 01 h+ _6 K7 Z5 `( }
;;i评价(j对jl的评价)
- f) c! _2 C- U1 b7 C2 O3 xlet j 3" J1 Z4 y3 u6 i7 M
let k 44 Y: N6 Y9 W% Q0 M L
while[j < trade-record-one-len]# y2 }6 |7 N: w: N( B
[
6 @1 T, R" Y9 _$ q! hwhile [((item 4(item j [trade-record-one] of myself)) - item 4(item k trade-record-one-j-l)) > 0][set k (k + 1)];;首先要寻找在i第k次给l评价的这一时刻,l相对于j的局部声誉
* n1 t& C1 R; k$ P& ?. a1 Qset credibility-i-j-l ( credibility-i-j-l + (item 4(item j [trade-record-one] of myself)) * (1 - abs ((item 3(item j [trade-record-one] of myself)) - item 5 (item k trade-record-one-j-l) ) )/ sum-time)0 H) w% s S3 }; R6 ~7 {- u
set j: x9 T1 z L6 k q" F3 l* {% N* u* a
( j + 1)
+ {. j7 N" X9 ~; r- X" p]
6 l# c- U8 g# f2 q1 _$ p" _set [credibility-all] of turtle l (replace-item ([who] of myself - 1)([credibility-all] of turtle l)(replace-item ([who] of customer - 1) (item ([who] of myself - 1) [credibility-all] of turtle l) credibility-i-j-l ))0 N3 n# e. z2 [( p) D$ h( B+ H/ C
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& w0 j& o9 J* T+ I& {; ~+ Tlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))2 E# `: n, O1 [4 x4 C, x
;;及时更新i对l的评价质量的评价
& H6 q& y* A1 G O1 w8 p3 g% mset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
* i# b$ m! ^: D( }) ^' Dset l (l + 1)+ N7 @% ]6 P5 _( \6 \
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end1 p7 P) F% d7 _7 V& r" {$ a6 K4 d/ J
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to update-credibility-list
! J' l/ A4 Q: G6 Elet i 0! n6 y% K& v. f
while[i < people]
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let j 0
$ {) F. h2 F- t7 g0 r$ Hlet note 0
0 D- a9 C4 p( J: Z; m/ W+ clet k 0
4 }. @5 q% J0 r: i) ^9 T- t;;计作出过评价的邻居节点的数目7 v$ S" o* ~9 ]
while[j < people]5 Y& Y: B9 p7 q8 h; Q T
[
! [6 Y& B* @% r) Uif (item j( [credibility] of turtle (i + 1)) != -1)
! W& p9 i2 f: K5 y;;判断是否给本turtle的评价质量做出过评价的节点
' W" F6 I6 [/ ?! d' F8 ?5 O) O- J[set note (note + item j ([credibility]of turtle (i + 1)))
) R/ f3 ?! _! b' N# G;;*(exp (-(people - 2)))/(people - 2))]% N6 R* I* N2 p* N1 o
set k (k + 1)! B: v0 B; K" S) }" A( Y0 ?
]* L3 E7 a" w( O8 y5 Y. R- q
set j (j + 1)
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' {9 |7 G5 Q" e( }set note (note *(exp (- (1 / k)))/ k)
3 \' Y# ?9 C) \8 h; aset credibility-list (replace-item i credibility-list note)
: N: e3 Q7 r9 qset i (i + 1): T6 B) R% `) K0 i! O
]
5 J! a4 F0 i+ w/ D" x) H% [end
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$ t P* e3 g/ t( {: Q; Wto update-global-reputation-list
. f s% y, P- }8 f R, Z% Elet j 0
. u8 C0 J, s+ B, Y1 r9 v; N! d+ {2 Wwhile[j < people]
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% O& V- h' F! F4 B; ]" m* F$ Plet new 0
4 K; {5 T6 G' Z2 n: E;;暂存新的一个全局声誉, \8 R& k. V7 A
let i 0
. J0 i" E, `1 Zlet sum-money 0" s+ t( L/ O0 o) l
let credibility-money 0
# W. T. C$ E+ [& ?2 t7 Twhile [i < people]1 `- a) g+ N+ W4 A6 j! s
[, x( ], O# z+ e1 j
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
9 R# @9 b7 [# n+ Tset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
3 `* Q6 M; {( _ iset i (i + 1)
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let k 0# B/ ~3 ?- U( B
let new1 0" ^' ?( d7 | [
while [k < people]
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set new1 (new1 + (item k credibility-list)* item 2(item k [trade-record-all] of turtle (j + 1))* (item 5 (last (item k [trade-record-all] of turtle(j + 1)))) / credibility-money): l l9 T/ C/ e: G+ T( T* a- B/ b: N) Q
set k (k + 1)
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set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 2 b$ d4 l. Y; g) v
set global-reputation-list (replace-item j global-reputation-list new)
% C2 v( Q3 O. i, }set j (j + 1)/ c; x1 L& z3 I5 H! c+ s
]
& o' T$ _( i. T/ S% B! Fend9 V, J( A0 r, A& X8 _
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to get-color) X8 y) M0 v# B! ^( C, l2 d
# B% ^: K2 m3 \set color blue# k1 k! p% @ I/ Y) S
end
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9 F/ W" ?: g4 P5 }( |to poll-class0 [: h, s5 E0 w+ S4 t( D
end
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to setup-plot1
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set-current-plot "Trends-of-Local-reputation"
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set-plot-x-range 0 xmax# c8 v$ _' G A4 U- {
. d$ n. O' p& `4 B% A* Jset-plot-y-range 0.0 ymax
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~, ^4 L7 C3 v, q( y# o a
to setup-plot2
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+ N k; E8 Q0 j1 o9 {( {; fset-current-plot "Trends-of-global-reputation"2 n# y% G3 Y7 W
/ j. W! Q& z) Y! p( m; v. Zset-plot-x-range 0 xmax
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8 t7 K6 G% ~' i- Cset-plot-y-range 0.0 ymax- N$ \& D9 J2 ~9 |
end' Z* Q/ M: m4 `( {$ E2 C/ |3 }
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to setup-plot3
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% w; \3 n+ W# z- w) d, p1 Oset-current-plot "Trends-of-credibility"! q# A7 J# o4 K
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set-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax( M) n- |+ _0 j! V; g3 N
end
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to do-plots" [6 @5 R. w/ a1 ]
set-current-plot "Trends-of-Local-reputation". T" Z9 @, P! l/ z
set-current-plot-pen "Honest service"
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e4 b( e4 A' H# l/ o/ c[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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