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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) U0 ] z/ d; X5 l- S6 \
globals[, c) ]8 Q: V0 ^+ \+ Y/ K- x' J
xmax
; `* V) D; d6 U5 q1 \* gymax, _; H5 r9 U3 x* B; L
global-reputation-list, N3 I% [2 w( z3 _. N) k% O
/ s- V. w7 [8 J$ Z& z7 g. A;;每一个turtle的全局声誉都存在此LIST中0 U5 N% a5 P9 `
credibility-list
3 G. p u$ O( w0 n* e( m8 {;;每一个turtle的评价可信度/ G! L9 y% K7 X1 Z6 l9 o7 I* b+ O% x
honest-service
* @/ `2 Y1 X: E9 R" l. Munhonest-service& N7 n3 f' v+ d$ N
oscillation
i" B& D2 n% drand-dynamic
; p) `% P: }$ c; {- H, h]1 N! u$ x, _0 Q% Y6 {0 \
6 O7 ?6 H0 a* Aturtles-own[
4 L# n! w# n, S* L: Ptrade-record-all
- |$ i3 T' u6 i6 d% ];;a list of lists,由trade-record-one组成9 G& p9 i. I: }% G3 L4 T) b. l
trade-record-one
5 o, o& y6 |: h9 r;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录# v. e) M* ]" A
( U& s4 h! t8 N/ B2 M;;[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]]
# d e1 }, j3 ?! t0 ?* strade-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]
( B4 D, [1 B4 E7 m; f& Ucredibility-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list4 a0 {! @% u' B6 z" _$ V0 \
neighbor-total, v2 H9 G! u+ y$ ?- Y& u
;;记录该turtle的邻居节点的数目2 K! ]: Q+ r ^7 Y0 C
trade-time2 `& g3 R2 |4 }) O6 d" q% K) _( w
;;当前发生交易的turtle的交易时间
& C7 v- y2 ] D% L7 D2 }( X8 ~8 ~8 cappraise-give3 H+ A' r! w9 ]& ~2 N: I
;;当前发生交易时给出的评价8 R1 P- _3 Q& e# ^: @7 |; q
appraise-receive
* }( o. n) n! V5 W;;当前发生交易时收到的评价7 Y& X$ s" \% ^4 R6 p- S. ]
appraise-time
5 l8 D% G- y% d& i4 l( O, _0 U/ Q;;当前发生交易时的评价时间
6 N" D) h: v% }+ x0 c+ i" nlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉* r% G+ t4 R/ l. {; G+ L! c; K
trade-times-total: p- O; p. D- z; @
;;与当前turtle的交易总次数6 S# v ?$ r+ [. t* ]! o! P
trade-money-total
2 N4 }6 @& H. T( s) \3 q;;与当前turtle的交易总金额: o% e; a) F* o y# j, w
local-reputation% B/ N" l; ?! \
global-reputation
' j T4 P- e2 B/ N$ C" z% ?# jcredibility- h& k R4 A! o& {; ?
;;评价可信度,每次交易后都需要更新
6 s! @9 s7 _* C3 i# zcredibility-all1 Q" n2 y+ h4 [9 M& X S+ h0 R; J
;;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
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7 i5 N& L! ]9 R Y4 `;;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
) c Y6 I4 ]0 q# f1 P$ ycredibility-one& U) q% x, \9 R; ]* y- G" c7 E
;;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# x7 \4 i9 C* f
global-proportion
7 F0 g( M: w: }# o- icustomer3 C1 c- ?* Y8 G1 G, r% O4 U: M
customer-no
9 g) U4 |- [- v/ v \3 s* Ftrust-ok0 P/ j! I" Y/ S9 D' W' I
trade-record-one-len;;trade-record-one的长度- Z) ]6 Y; R: o
]+ n- A( `8 u- G+ }& v1 U
: p5 B T4 Q. H! M;;setup procedure; s9 t4 o8 x) ~9 f7 i
A+ Q/ o5 o3 n; [to setup+ e4 G6 g* i7 I8 u
* A. U6 k1 i3 _' O2 Kca
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5 n% [" R1 @$ Q" r, X9 f* cinitialize-settings
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crt people [setup-turtles]
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" T# O8 l. `. _) O2 Y! e, D) x! ereset-timer4 {! ~5 F9 x; u3 W( A2 j- S
: G2 c+ l0 O" @7 b
poll-class
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) ]% y& J1 D7 l; n; hsetup-plots4 `9 Q9 `! K1 g
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do-plots
0 A% h9 C. m$ D3 q, H, X+ aend% q/ y" ^: {3 D4 R' t
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to initialize-settings
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" F% @( i' N5 ~* a$ q3 _5 I% S' lset global-reputation-list []
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set credibility-list n-values people [0.5]
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set honest-service 0: ?, ]. v; ~6 F5 [) g) z" x
4 U6 t8 e$ N; h9 R. qset unhonest-service 0% S7 d& k) y) C( X8 o
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set oscillation 0
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set rand-dynamic 00 {/ k! |4 u! w' r
end
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to setup-turtles 1 F, f3 X! a3 p: `
set shape "person". ^* p X, d! j- y
setxy random-xcor random-ycor. h' l5 i; |; n6 \
set trade-record-one []% S$ Q& o2 b" R' ]! z) D* I
4 P k; C- V( Q) Iset trade-record-all n-values people [(list (? + 1) 0 0)] 4 O/ S: _6 [$ ? n& A$ `' y) s
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set trade-record-current []. F/ D! V2 a, i% \: r; E7 N/ u
set credibility-receive [], ^5 u/ p+ K/ H# k0 l2 `
set local-reputation 0.59 `; t* t% n; d3 Y7 |- o
set neighbor-total 0( I9 T0 _! E* z _9 Y( w6 C1 l$ J
set trade-times-total 0
; q! g9 w% J) K$ _) Gset trade-money-total 0
, e* A% q3 _" @) F; vset customer nobody
% m# u: X9 y! Y, y% G5 y7 T0 Cset credibility-all n-values people [creat-credibility]+ ^+ [- s/ u7 ~0 U2 ^! ^; V, L
set credibility n-values people [-1]
! K8 f5 Y9 \! j4 v. l8 q A4 `# `get-color
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end5 o6 r2 T" q( u5 s% W! ^
% q$ {/ x- x0 p0 Mto-report creat-credibility
$ c* m/ S% [. X; E* S* V% T! A. creport n-values people [0.5]) s1 _) O3 i. d) @
end: X2 o' r' e2 A! ^: g( l" ?& k; l5 T
% x7 y( J- L0 Yto setup-plots
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" x# G0 R/ q# S3 aset xmax 30
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set ymax 1.0
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clear-all-plots* ^4 x0 `! d9 `8 z( r# Y2 }
, e5 E% b1 I ^% A5 Asetup-plot1
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setup-plot2
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setup-plot3
0 d1 W- f( g5 ?4 y9 _end
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;;run time procedures
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/ I, @ }- f/ H. i& A- ~# O+ i/ N- gto go
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ask turtles [do-business]
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to do-business
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, q- ~% Q, r) q2 v( f+ v0 o0 @rt random 360' w( ]6 d( I; o# c$ B4 x! D
5 L9 A. d* E- [* F: x
fd 15 [5 M7 i2 b7 X. q+ O: V$ W% {
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ifelse(other turtles-here != nobody)[/ D. K' t: M) b! w
6 l) Q% V! q1 t/ @' x9 h3 Z! {set customer one-of other turtles-here6 V% }; I' O& t
y R' T* g1 s- Q
;; set [customer] of customer myself! x' q5 k) Q1 L- E/ b7 W% W) ^$ o
3 a0 M) t$ U: k$ `' e& Dset [trade-record-one] of self item (([who] of customer) - 1)
5 I( n8 m f9 d[trade-record-all]of self
/ |4 P) R1 S% A i9 k$ J8 G;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
) j; V2 ^' d: I- p% B) G/ i7 R' K# c
set [trade-record-one] of customer item (([who] of self) - 1)
; _- j& P( U5 m- p% M! ~[trade-record-all]of customer
% Q8 Z8 g, z) I5 N
' y$ u3 }6 Q& D$ K% ^set [trade-record-one-len] of self length [trade-record-one] of self, s# B2 q+ D u, Z8 V8 W
: q: ]& l z! c8 n
set trade-record-current( list (timer) (random money-upper-limit))
p1 H8 p) O+ a/ o* F- N9 Y& l( J" h0 |
ask self [do-trust]
: T9 a3 S0 Q! X V$ V# v;;先求i对j的信任度 K1 u0 {1 G% t
! C' n0 S$ W+ T9 n3 B( [
if ([trust-ok] of self)) `# ]( G& m( i/ Y
;;根据i对j的信任度来决定是否与j进行交易[% f# e U" ~& Y& c
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[, l/ a, Y# H& P6 B2 \( p, O6 ]+ H# Y
: q( ?- u, n) n9 ^do-trade. P! k' p" B/ ^; ?8 d* T! Q
! V9 F8 l0 n8 A9 V. Wupdate-credibility-ijl
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' [" u* s5 p* u# Z3 r/ yupdate-credibility-list
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# ]6 H& J" Z) Y3 H* N" g, ]update-global-reputation-list: K2 @; K E8 U
9 o- L4 R. s( }7 l+ B* w
poll-class0 \1 s9 e7 o) l! h
5 d& V+ i8 D5 p' q7 F. iget-color
8 {0 N2 I0 m$ G4 R0 }! l
: m0 v, b w, U, H# Y1 o]]# f) y! d/ M* |9 H2 `8 f" x
/ k6 P' B6 ?1 R% B
;;如果所得的信任度满足条件,则进行交易
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1 f6 t4 A- B* E% w[) j2 J0 Z! N9 P: Q8 a* H. ?: r
, t! F0 S- ?3 Nrt random 3600 x9 H" W0 N( y0 R7 q0 i% T' b+ G4 Y8 l
2 O+ O. y/ z) i" ]+ cfd 1
. e0 u* z9 K0 M- T" f* M& ?. ^ N; z: p$ g# l
]7 Q# I, E( G: S) B- i
. u' T% m# V9 q5 i: vend
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0 a4 e+ B: b. gto do-trust # [+ h7 |3 J" K! g: r
set trust-ok False
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- f" J1 D+ P0 Y4 hlet max-trade-times 0
! L, u- j; W4 L/ Lforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]: v: g0 w/ c/ A: p0 b1 S" F/ }
let max-trade-money 0
) a* \- A& U; F. h0 m* wforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
9 c4 ~9 H. m& zlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))& D+ I. k7 u O9 h% d
* J0 k8 K& `: n9 b9 c1 ^$ J
6 g- g) l c, e8 p8 n, r( K, Qget-global-proportion" H9 F7 R& b. y* Z* [
let trust-value+ U1 r- h4 T, y; T( }! P9 z
local-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
' N% W, u% g! d5 nif(trust-value > trade-trust-value); `9 C7 B$ N; U' ~
[set trust-ok true] S; J( P/ S# i: u6 w
end, I: n' m% } @: O& j
% W4 {6 |6 a: D) Vto get-global-proportion
! U" n0 \! `. y" }ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3). n& u$ Q' a4 }8 W
[set global-proportion 0]$ @+ a& g/ M) q- |
[let i 0
) a/ T2 b' Z g( slet sum-money 0 i+ x" B6 ]" [) ^
while[ i < people]
% Q6 n9 R3 _% i4 C[, m4 F+ y5 o( ^6 q
if( length (item i
( T6 o `, g5 A9 s: m$ R9 ][trade-record-all] of customer) > 3 )
. p9 Z1 B1 t9 E" X& J7 e[2 S% y7 r( c- a3 r
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
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" i! y' g! U. i' m9 X/ G) N]; T" N$ J$ ~7 t; l1 ^8 b
let j 0
# C7 L: s5 n2 X0 H: Mlet note 0
+ ~4 |* i3 D; C/ a; Iwhile[ j < people]) ^7 V$ V6 F; H' z% s" |& q
[' ~; L1 V; K/ G% w7 R7 h
if( length (item i& X3 s; E0 o$ L+ b: m* a
[trade-record-all] of customer) > 3 ), ?5 m- r' Z. j/ f. I1 h! N
[
* Y; J- k$ G/ [: G8 X$ G" Uifelse(item ([who]of myself - 1) [credibility] of turtle j != -1); d7 p: q' t+ j# W8 K
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]. C# ^& S* I, w) ~, B6 o" ?
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
, f" `4 @2 O$ [+ j]+ C5 [1 ] n$ I! E, r" F3 {
]9 z5 \; p9 P& u* M! }* p/ G. ?
set global-proportion note4 S3 |2 i! K7 h
]# n! [+ \$ \/ }
end$ K" I" Z% q' k2 ^- ], f0 o
* @% D, C. H1 qto do-trade
/ W" k7 l2 E9 L g; \;;这个过程实际上是给双方作出评价的过程
( ?! M$ l! @1 k1 O7 n$ k X! _8 Tset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
2 {' E4 r# X$ e5 \" T6 ?% E3 ?set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
; t0 O! s, a* g* c$ e$ oset trade-record-current lput(timer) trade-record-current
; \5 ^% w& i# |- v% V- e$ l0 y;;评价时间; o; O) z. P1 j
ask myself [
g8 O/ L6 z, X" k1 Vupdate-local-reputation
/ d! b8 {) c1 h1 r+ L. Z1 g$ E- [set trade-record-current lput([local-reputation] of myself) trade-record-current
; z0 l5 Y2 R, a1 c; c S7 J0 v]# j7 h- n" d+ S4 K' W1 l
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
" b7 _, _7 `1 M+ x9 C) P;;将此次交易的记录加入到trade-record-one中
5 q5 B" ?2 _" X* M3 B# Fset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)4 F2 f4 f1 j5 h1 M, Z) `, |3 }
let note (item 2 trade-record-current )) f: T( C6 c& ?9 Y. H
set trade-record-current& M, Q9 Q% p) c1 X7 B
(replace-item 2 trade-record-current (item 3 trade-record-current))( q) _, G8 X$ P c3 f
set trade-record-current
' |* ~: D$ Q( U! L# I( a(replace-item 3 trade-record-current note)& V2 I) ?- F7 D$ b1 ?
$ U: l8 g0 V+ s, E$ r3 O Q
. m& T# c& v; Sask customer [; }' e" O+ W6 C" i. c
update-local-reputation
& ^. |& E3 u1 \ f7 w) Sset trade-record-current
( k+ W& p% ?: S6 ]; [. n z( k(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer- n5 j0 I5 o5 c! X# z; L1 ^
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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))9 d! F( c1 x8 |$ H( {! n, D9 M4 E& I
;;将此次交易的记录加入到customer的trade-record-all中: P1 ]! H5 `* j1 V% I
end
* _5 H6 Z( w, U+ ^& u! f1 k5 h& a
to update-local-reputation
4 u, x3 T. Y5 a4 A' Eset [trade-record-one-len] of myself length [trade-record-one] of myself6 }) y$ Y$ T& |, X7 o' s
" n& L0 E- o R, M, @( o/ H& ^# f. m Q3 `
;;if [trade-record-one-len] of myself > 3
* K+ z: p% p) y* Bupdate-neighbor-total% f( y6 Z9 ~/ d- _, J6 l
;;更新邻居节点的数目,在此进行* f7 U8 {) b* t6 w# z
let i 3' |' E: Q$ A2 g: c3 i) _
let sum-time 0
* B" l* t! \3 D4 q" Dwhile[i < [trade-record-one-len] of myself]8 y% B+ j* w V% o9 u3 \, e( j
[8 I X8 e4 w: Q" [9 v0 S
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
; K% J6 _% Y) _4 A6 `! Q* H8 w: aset i0 w- I6 B* W3 O6 r3 F
( i + 1)
7 ^1 P ~' S1 z. r- |* c; x$ z]
- ~/ o3 n: z2 j0 U: Zlet j 31 H: \( t' F# S" U6 X+ H$ l
let sum-money 09 e8 @; F$ d9 Q
while[j < [trade-record-one-len] of myself]$ c4 |0 X# W9 h
[6 u2 w3 M% y/ k0 d; [8 S- h
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)3 b! V" i' y4 R/ ] Q/ m
set j
3 I$ f. q+ O% _! A5 ^" u( j + 1)
! ^, W8 X. f+ u9 ^; r z]
0 E) J4 y8 T4 ]% J- l+ Elet k 3
, v# b3 D ]' b8 m! [let power 09 Z$ y% V4 S4 |+ J
let local 08 s. M) E7 ]& j6 B8 g4 j
while [k <[trade-record-one-len] of myself] s5 y9 l7 C2 S% h
[
5 u1 V7 J! R9 M9 q% M$ `; oset 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) / {6 |7 j. x. j! s9 O: W9 y7 s6 d
set k (k + 1)% c* F' h2 L: P" u/ P
]
* I# O- @. g$ ^2 Q! s. Oset [local-reputation] of myself (local). w" }; Q: V" P$ c2 `3 G! O% J0 g
end
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5 _( p, E. l6 Gto update-neighbor-total, c3 K, j; u4 ^! S; ]
, d& |: T! b4 D, \
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
4 D( [' n) r( \. c
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end" H2 A& H+ I2 ]
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to update-credibility-ijl
2 W0 s. @. }6 r E& L+ k& c
& r. s% Z- g% E% C;;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。
6 T+ E: @: r c( tlet l 01 J, b9 V( b/ l
while[ l < people ]
$ i: d. @( q1 k' p8 ~' o# y;;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( B" a1 O; y: U* h0 G$ q
[
* @6 y3 v3 `6 U2 ^; b" [let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
- Q4 g6 h; W. \if (trade-record-one-j-l-len > 3)5 ^7 F0 }" k, H" F! L
[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
8 X8 S+ M0 p' @9 ^& Xlet i 3
" C, L) u" h$ Tlet sum-time 00 U, ~! G+ L6 p( O3 l! u" P) m
while[i < trade-record-one-len]
; [' f( T; J6 O7 |+ C4 c[4 H( _9 z! M) g: h
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )- S# D& Y0 W4 p$ R% Y0 t
set i
) n, b- }! |! o( i + 1)- Y6 d0 E" d4 e* m: @+ `' w7 d
]
; e9 P: g9 v9 f8 T4 k/ ]3 R- hlet credibility-i-j-l 0* I6 s5 r1 N% \
;;i评价(j对jl的评价)
7 f" c; p9 @/ x/ E) Zlet j 3. z2 ]& e1 H; S( o" n
let k 4
' { ~6 X* [, F9 dwhile[j < trade-record-one-len]: d+ k3 R, e& X: G+ K8 V1 D4 P
[" F' Y9 q! k7 I" n
while [((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
. v. u2 I y" H8 ~8 J: q& lset 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)- R# u" U) t# d. t# c
set j' {/ I+ \9 L: I6 i% v- L/ t" s
( j + 1)+ f. r! h9 U+ k( U( L' q
]: k& Q# a. N' {7 }0 ~* f) t
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 ))
$ O2 v' F. _( j' t- ]/ |
$ W8 r D* Y% P9 v$ J3 D
9 b' S, `3 H' @* t* c0 H2 s3 jlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
1 w4 y3 y W) g6 u;;及时更新i对l的评价质量的评价
# U: l% ~- e1 uset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
6 \! s, c. ]& ^set l (l + 1)
: [3 S$ |/ W+ F/ G5 H. F2 w]
+ |+ C! Q* g0 `, V9 Cend
\& \" X% f* b+ S8 o/ R
8 r K( d+ L, g. J# `to update-credibility-list k6 v; X( S( T( ^0 D
let i 05 \1 t, u% r% ] _0 ~7 E* \
while[i < people]- N8 U& }, O4 o
[
! C0 m7 A, L( _9 `% g' Z0 P6 a, ]let j 0: S5 W Q: q. f; d6 i. B
let note 0
. X7 ]! g& N% M1 C7 i4 zlet k 0: v6 C, J% \4 W4 c" T9 Q
;;计作出过评价的邻居节点的数目* K) k4 j Y0 O0 C
while[j < people]1 V+ D) w" [8 |
[! G1 G# J' R& [0 Q" U" t
if (item j( [credibility] of turtle (i + 1)) != -1)4 e/ I1 W# g( b, t$ }4 U
;;判断是否给本turtle的评价质量做出过评价的节点: Y. N2 } K5 r- w& s& g
[set note (note + item j ([credibility]of turtle (i + 1)))3 P$ u( m4 B+ m* Q, i
;;*(exp (-(people - 2)))/(people - 2))]
3 n4 o3 P6 D7 j7 ~set k (k + 1)4 \% ?/ t1 b- `! D' N7 Y
]
+ d; y* l) c& r- Yset j (j + 1)2 b0 J) w5 t4 u& s
]
' i3 v: c4 ]/ f% y1 w. X# ?3 j4 Sset note (note *(exp (- (1 / k)))/ k)& C1 `. Q/ b7 L2 A; [6 K( {/ t! s
set credibility-list (replace-item i credibility-list note)4 f7 w5 Q0 `+ _4 T: c! w2 s5 K
set i (i + 1)& w# k0 O- {5 U: `
]/ u% U! k+ ]! O* |3 e1 a0 j) j9 F) t
end
. U, K1 v2 V a) {# K X9 C& S k: q* ?2 L: O
to update-global-reputation-list. v/ i7 z% `1 k
let j 0
; e: r' f2 G% @( _while[j < people]
3 X+ @, o6 c* E/ D0 [1 B[
, b! B% u2 z. T6 T) c/ Q2 J9 x* I7 Qlet new 0
! X$ A9 }2 x! T- ^;;暂存新的一个全局声誉
+ H1 q2 Z1 I& ^: C6 |let i 0
$ Q( F6 o/ N. D; e( _5 A, }1 J! jlet sum-money 0
: [" z) O& g! w" x6 i! W& plet credibility-money 08 P, f: R+ Q& N' s( }7 ^2 `
while [i < people]
, Y+ C3 J1 k7 W6 T: ?[
- r( c' `! |# N H n' vset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))& {0 s8 ?' L. Q0 M
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
q( b2 ^$ l- }/ k% ]3 g1 Y, N. P( v9 fset i (i + 1)) U( q/ g7 K& r
]
7 i8 c7 x. d& t& Elet k 0. J1 w) W7 L* i1 M# g
let new1 0
) \- U( d3 q: Ewhile [k < people]6 ~( L4 A' o! y) ^! g- m1 J& ~* D
[" @6 x# B6 E6 u. P
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) i( s9 ~# R' h X! ?: F- n. H; M
set k (k + 1): H1 n* o- S9 w+ ~5 d
]+ p2 J8 Z$ t8 F% |: l
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
" t9 N: G* G* v7 j1 T4 A7 _set global-reputation-list (replace-item j global-reputation-list new)1 P( t5 L7 e: E7 @6 {: q
set j (j + 1)' J' s1 D! h1 v
]
# F" x9 k9 }: S& H1 j- Vend4 V* p% p# Z7 D, W, K
2 H% p2 [ _5 L) D) M( i# u
+ D4 E K2 ~6 K) D
6 C+ _& ]1 I1 I* d% ~to get-color
- X$ I% e" G) W- L9 i& P1 N( O+ m( G3 `9 S
set color blue
! x2 Y, ~( z( C* nend
* b; g6 N6 V, w% z/ \# l9 R' Q, h/ R! K
to poll-class
) _2 u' ~8 }2 Send
7 w5 ^. E" `; p6 Y' s$ C# w6 n
- w1 Q& U& f$ w: Sto setup-plot1
# [" F* L. n+ a0 e
9 e6 X$ S. S3 n% {- k+ H$ f5 Uset-current-plot "Trends-of-Local-reputation"
6 C- E! w/ g( z
j: G8 A$ ^; N8 k7 h6 Y6 bset-plot-x-range 0 xmax
8 |+ C0 O$ h) A9 e9 z
* z# l% _$ t6 q$ k* Z+ P3 N, Yset-plot-y-range 0.0 ymax( U$ F+ q; C7 D
end0 C1 e/ P' i2 D6 B! Q0 O- U3 \
8 L+ A* _/ {+ _+ ?1 tto setup-plot2: r0 P$ ^9 O0 `4 Q2 C
9 V; x5 R0 k8 J: zset-current-plot "Trends-of-global-reputation"+ S9 `3 y% u$ D
' O9 {$ j" d/ @1 ?8 |# L' x- L8 F
set-plot-x-range 0 xmax
# @) G5 m! |& E% u! a! Q, C& G) J! k- x; j
set-plot-y-range 0.0 ymax0 H, @5 V. I( ` n: H1 h( p
end
0 F& X3 I( r: X' }, Z. Q$ |5 F5 x' Y
to setup-plot3# `$ Q6 J! @- c& i6 O
# n6 g( B" J, ~2 S2 u
set-current-plot "Trends-of-credibility"
* w9 J5 f. A' B( Z* E( a* L3 p8 |+ ]
set-plot-x-range 0 xmax7 A6 H5 G1 {% g; `
( F1 P- v- I9 Eset-plot-y-range 0.0 ymax q, i* ?1 o4 z7 W6 A
end1 \+ J- c+ }* D5 m3 i7 e
" n' s# H! j3 O; e `# Fto do-plots" n n% q) L) Q! ^0 [
set-current-plot "Trends-of-Local-reputation"$ c+ {' V, P1 k$ A% Y' o1 C
set-current-plot-pen "Honest service"9 N+ b- O; E1 ^( G: l2 T6 l+ R
end
5 h0 ?# K+ y1 y, g: z! P. V ]9 ^, {0 }. T# w; t! W+ e
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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