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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/ B+ `+ N0 P! t8 O: A
globals[- o4 h! M, @2 {2 Q
xmax5 f4 z, |8 U( F* O, O
ymax3 O0 g# N& s9 i4 b7 h0 y' H
global-reputation-list
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;;每一个turtle的全局声誉都存在此LIST中
! j% ?( U& c6 G) bcredibility-list
/ U5 {0 A7 n# F4 p$ x, m7 b;;每一个turtle的评价可信度
$ B0 s3 D) ~6 k; Ehonest-service
* f* l/ T! r# L- y6 yunhonest-service
" r! b, d& V- V7 I1 W5 v$ ~oscillation* @$ b0 I6 ]' I
rand-dynamic
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turtles-own[* D; ^" t: g; z' h
trade-record-all" k0 r3 S: f, m1 F0 Z) h
;;a list of lists,由trade-record-one组成* P+ J# u- l$ f2 {) q9 E
trade-record-one
2 @8 Y$ y& U; g7 g* \6 I;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
( m4 H9 V4 f& O8 y0 W* D0 B- K5 e+ A
;;[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]]* p3 t) d1 m4 \* o5 N4 M
trade-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]
& u9 p0 A: j9 W! ]- \credibility-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
& X. }; s* U/ K/ J9 m: \. G4 w4 sneighbor-total# a/ \ d5 E. G- F2 W" i
;;记录该turtle的邻居节点的数目$ s: n: p" X7 ]3 {- o, b
trade-time
; o' U8 R ^1 L9 ^+ S;;当前发生交易的turtle的交易时间
2 L- Q E3 O/ U- {- wappraise-give- O0 Z. o) j G @7 C/ W! w1 v" T- c
;;当前发生交易时给出的评价
9 q) {% y a" e* L* G! h+ g1 p. x) Dappraise-receive
7 V7 v) X" G* T* x% n* Z: E;;当前发生交易时收到的评价3 D, I/ U4 G2 k* x, Y; \( G
appraise-time' a/ o# f" C$ [& g% r9 B
;;当前发生交易时的评价时间
. [8 S' f+ u8 ?% @3 Z8 K. T7 hlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
$ t( m1 G% |6 P& X( a1 f4 [9 j" I itrade-times-total' m9 w+ X- Z" x7 M" I3 H" Z* b4 h
;;与当前turtle的交易总次数
4 O- Q( d: |9 j5 vtrade-money-total
$ ?8 Y3 V. n" o& T4 y;;与当前turtle的交易总金额$ K" n- S* n( a9 T" |$ b8 |0 h& Z; a$ n
local-reputation
# n$ G" _5 L) k# @! X" e5 uglobal-reputation
7 l( r" ^; B2 v1 z0 g$ A& S# Ecredibility7 a J& I0 {0 f
;;评价可信度,每次交易后都需要更新
! M3 b: Q) d$ b& E& ecredibility-all
) R5 P# O0 a4 ?* e4 F;;a list of lists,由credibility-one组成。[[1对j的评价质量的评价][2对j的评价质量的评价]……[i对j的评价质量的评价]……],其中一共有people项,根据
2 r9 h) q9 [9 S5 P! W% N+ ~' _& X( r
$ S* O6 N" P5 x;;turtle的编号对号入座,对于其自身的编号,在计算用到的时候再进行剔减,初始值均为0.51 ~1 V8 q2 c# J! _4 \: l
credibility-one) v% V4 P. y* `) B
;;a list [i对j给1的评价的质量评价,i对j给2的评价的质量评价……],其中一共有people项 D- B! }; c$ Z+ f) G0 z0 P- d
global-proportion6 p8 D; j& V u0 s: } x9 F
customer* \) _: N5 Q3 x* m6 x" G! Q& a
customer-no
* f% C: G. R' b0 C8 t1 m4 g$ Itrust-ok. g0 [& X- Z) F9 @* F7 u a8 a
trade-record-one-len;;trade-record-one的长度
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$ C6 ^7 c/ L9 b7 `& h( Z;;setup procedure2 o& U7 R0 v- @" C3 Y/ \- a
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to setup/ q0 y3 P% E6 {) j
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ca) C6 _- ^; `: S7 e8 K1 F
$ c4 z: G! c. T8 D/ _* Ninitialize-settings
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}2 B) w1 E& T. C7 A& U' ocrt people [setup-turtles]
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9 P6 V; \/ Y, `2 M4 Wreset-timer7 T$ ~* ], R! M9 O6 w5 Q
$ M. R) S s. Z/ P. z9 e$ C
poll-class
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* A+ d5 l% }1 h; R7 d Ssetup-plots
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) ?- H: `/ Q- T3 R# M8 I& jdo-plots
R+ \, k% h Hend
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to initialize-settings
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set global-reputation-list []' `% x; n Q% C: d" }
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set credibility-list n-values people [0.5]
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4 C! N9 H, l# V# B4 R% e5 W9 rset honest-service 05 i' j* U, m/ L1 ^: R& R1 R9 e
: S1 m, @! T8 i& M$ e! K
set unhonest-service 0. r4 Z- U8 N& ~( {' z7 ]7 \( T
, w" v- G5 r0 z* ~$ k9 w! wset oscillation 0
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0 J& M. Y K# k8 h/ g* F9 Vset rand-dynamic 0. r/ X7 m. L+ ]* ^0 Z
end: F; x% S9 C: m4 }2 b; R. m. ^
0 V. R9 [0 |; I; L7 Fto setup-turtles
* j; E% c4 J# F$ j% h, M. ^. Q" Kset shape "person"- N3 x; Z: E6 G' E) s$ j
setxy random-xcor random-ycor
8 T6 z* Q( `2 X9 c! aset trade-record-one []
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( {9 p9 x% A5 H( U, p; \set trade-record-all n-values people [(list (? + 1) 0 0)]
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set trade-record-current []+ y3 L$ | D7 A5 x( U
set credibility-receive []
: _5 k) n, I/ o/ c2 Z1 Oset local-reputation 0.5
5 ~, z9 `6 M& F' E a& fset neighbor-total 0
- a& G# d$ l9 E: k: u+ h+ Jset trade-times-total 0) E) A# N+ l- P# U, f
set trade-money-total 0) J) _6 @. z C7 u
set customer nobody- w% t8 l( ?. l+ \% a% g, D( b, r
set credibility-all n-values people [creat-credibility]; j) Y4 N6 A+ @; m& ?/ i
set credibility n-values people [-1]; ]3 \7 g/ }) V
get-color. x( s6 @% f5 i+ w9 i
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end
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# Z4 S2 \, P; ^9 i* F5 ]5 q- @, `to-report creat-credibility$ O8 j0 ?; s# c/ r& c3 R
report n-values people [0.5]; Y1 F o6 q5 _" Y& ~. I8 d) x2 o! t$ q
end
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: F8 \" o% h8 d' L: o7 Vto setup-plots
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set xmax 30
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set ymax 1.0
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clear-all-plots
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setup-plot1, Z* l6 ]5 O' P' M
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setup-plot2# Z$ R$ w' k" m2 i* {
L+ `9 Q2 o9 A5 ^% `8 _) asetup-plot3
* t' a3 B# s' r! P7 n$ w# e% _end/ u; H: C9 R. y1 o3 {
+ l$ Y- m' R8 ~& s
;;run time procedures+ N! K* o# M. q2 O+ A c1 i
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to go% R5 B: t, H0 M2 @/ }2 t% m
9 b9 w/ F Y* B) B; b0 ?2 {
ask turtles [do-business]# i) F' F5 O6 e' B3 n& F) `
end
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: H1 r9 \$ W1 u. i% ^$ V7 g: F; W- Cto do-business " k$ f+ t! o: I I
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rt random 360
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- X' O1 g2 l; T0 [! T5 A! tifelse(other turtles-here != nobody)[
! W k) \2 C% W5 w" ~7 [% Z! l$ y* b. `! X* S1 F
set customer one-of other turtles-here2 t, f+ z- i( K( q
/ x) I- m) t( H) i+ Q) A6 y9 S7 a;; set [customer] of customer myself/ J( q/ \2 M, K$ D5 z# k
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set [trade-record-one] of self item (([who] of customer) - 1)
8 r+ Q1 ], b+ y& {. m" d. X) y[trade-record-all]of self3 w0 b) d" s3 t2 p0 d# B
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self9 |0 f' C# Q4 _" T
. H7 ]4 P; T3 {( v6 C* Rset [trade-record-one] of customer item (([who] of self) - 1)
9 t% Y" {& `5 |" i0 b+ C% m* j1 o[trade-record-all]of customer2 W, u9 @+ R8 g! I" Q; E6 b
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set [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit))
3 K2 S, s8 X |, w' j: [, e
# @+ E: A2 l, q1 ?ask self [do-trust]) h. K, h- L+ z8 B" O0 Y
;;先求i对j的信任度
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if ([trust-ok] of self)
" Y+ Q, }1 T* n. Z( C! b;;根据i对j的信任度来决定是否与j进行交易[
& l* l; Y! N1 Y' `/ task customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself+ k+ N! F6 P4 u( B% l B, [
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5 ~$ h: F$ B2 N
do-trade7 ^! D+ |$ D6 X
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update-credibility-ijl% K/ K* C( {" E' f, A
6 N" x% K Z/ Rupdate-credibility-list: s; l! E6 G- Q
6 e& H2 L5 z& X8 |' U
) T& m4 P' j: A# R- Gupdate-global-reputation-list; V: ]6 {& u1 D* |8 [9 [6 [, T. T0 }
+ ?4 F4 V/ p* l# Y. Vpoll-class
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2 ~" h7 B. Q# v( L# c/ hget-color
7 T, ^( K% ~9 c2 X" `' K/ N
' r# P. m( H% H% |6 E]]
) u+ N+ |, S; X% B ?* S
6 n/ o6 B- |' j' h5 x: ~;;如果所得的信任度满足条件,则进行交易
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6 {6 o J# u0 I5 O0 z[
8 q7 d8 y' @9 L0 _
- k5 n g# p) h# D+ a* C" Irt random 360" e9 |6 A: [6 I- L8 U
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]
v- _* i' m' z# |) L0 }
0 {, `+ Q9 x7 m6 ^+ d7 ^end( @ [: c- a |
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to do-trust ; F1 W9 a/ }- k2 d9 k8 [' f* }5 T
set trust-ok False
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5 x; I" L* V8 q8 L9 W- Tlet max-trade-times 0
% _/ N+ q6 v; F; Dforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
2 y7 d. c6 f7 G2 _1 e- Glet max-trade-money 0
9 G4 J! f' F2 M# f* R+ Bforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
, ~6 ~' \: r# U; m0 B2 l' nlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))* L6 i6 m H X2 }9 o: k, J3 l1 g7 n
4 I9 _) L5 r7 W7 a$ k
- l J: C* ?* G! `5 [7 F. }get-global-proportion
( u" ]5 _& Y Q j0 T; j& T/ P8 clet trust-value
% r7 c! [6 Q Q# c* R$ 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), `; [3 _1 V& i: u9 F: ~7 o" ~
if(trust-value > trade-trust-value)6 v3 X7 K; l8 Y4 V: B
[set trust-ok true]' m% o2 ?4 d. a( |. w* g
end! _; V5 D( \" ~# Q Q
' \5 J- @7 }, a1 g9 W, Rto get-global-proportion$ q# s# k5 H$ H3 y& j/ ~: a C, {
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)2 h, o l( d. h% d; S; v
[set global-proportion 0]1 p& J5 a% f; ?, }: H
[let i 0
) U9 M6 J/ {$ s3 nlet sum-money 0
9 |. t5 t9 F q5 o$ P6 vwhile[ i < people]: @/ R, `% s. ]8 F7 L
[
; w& C5 x- H2 d( z! |" @if( length (item i3 C! B+ j: j& N7 t2 H" N7 h: V
[trade-record-all] of customer) > 3 )
9 z& d. B7 ^7 w8 b7 W[
1 ]4 P4 y1 V4 Zset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
4 h. x6 v; s) b( J/ _. F# V] _: M# q E* N$ A
]
! m- l! z+ t! j3 M! o8 qlet j 0: t0 A4 n% a" D2 Q" @' C {
let note 09 H9 n! D, F i; \
while[ j < people]
% h) t- K9 x5 t2 X& L6 y[
" b% K0 l5 @9 z! x: {if( length (item i2 s* \: F: x( g( j' ^! P4 {
[trade-record-all] of customer) > 3 )
$ w) b! S! T% G! `[4 @. s' }) P% Q5 f' W# b
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)) R; m5 R/ A( h6 D8 u" u$ ]% u
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
T8 j& q, k5 l8 Q$ ][set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
9 I4 C% H% r! ?& y3 U]
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set global-proportion note4 J* J* v' y% g, b
]
" M( d+ P4 {; Z6 Q- @end
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to do-trade
' j9 P& {6 c1 k7 Y2 H: [5 `;;这个过程实际上是给双方作出评价的过程1 e" w4 O, l( b, D; B8 M
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
2 p/ j( V$ ]4 F1 G, m q1 t+ t. ~set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价5 e* J) j. p. {7 w; ^
set trade-record-current lput(timer) trade-record-current
: _3 ?9 v8 z4 \;;评价时间: J: |$ ]( l/ G- @6 }
ask myself [8 F5 r" M' X/ |! a- k6 @! O% Z
update-local-reputation: b _! U h2 I2 ]3 S2 y4 Y
set trade-record-current lput([local-reputation] of myself) trade-record-current
4 R# E( \7 s1 a9 e9 h$ ]( W* F]. }6 k3 Y& Z( {
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself* J4 @6 N; n( S# ^' Z/ o
;;将此次交易的记录加入到trade-record-one中% E7 s8 ?6 A) G/ ?
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)1 l2 ^; Y" N, W( _8 I. T
let note (item 2 trade-record-current )
7 ^5 R3 Y& @( h- K$ u0 d& \set trade-record-current9 B8 m1 A* x( V
(replace-item 2 trade-record-current (item 3 trade-record-current))
. ^% q' N |3 M3 w8 k* S' q/ kset trade-record-current
# P9 J* n9 q% `' I5 [! P(replace-item 3 trade-record-current note)3 X# X5 M3 _0 t3 e4 ?# U
2 C" m4 Y8 E$ z
1 F- H& Y4 Q/ D9 M6 i
ask customer [/ C" Y1 D& X; J* R8 v" o
update-local-reputation
0 g: M/ A ^ S) `3 [, i+ Q* n& o0 mset trade-record-current
; \- I: M0 @; q2 H( I2 g(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
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& {( [( i, N; F1 e6 C J8 Pset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
1 P/ j# O, T3 Z& B. l;;将此次交易的记录加入到customer的trade-record-all中
* A" q6 ]$ J8 I( f1 k' ?2 N! k- Fend
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to update-local-reputation
( Z- O' y D% L+ Xset [trade-record-one-len] of myself length [trade-record-one] of myself
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;;if [trade-record-one-len] of myself > 3
$ w" b7 I% V# J2 a3 U/ xupdate-neighbor-total( _; ?9 a; u0 P# W/ K
;;更新邻居节点的数目,在此进行
" \2 w, ] _$ b. W# |let i 36 g* t: {& t( J% }+ W5 D: z
let sum-time 0
7 g" O ]3 Z7 Cwhile[i < [trade-record-one-len] of myself]
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set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )# B8 A; O3 K# v: F; a
set i
6 g% D8 j# \" z! @: t% C7 z( i + 1)' C* g6 n: i8 Q
]
3 z! {+ _3 \( X1 e8 V; vlet j 3+ B5 [# Q- U7 X) x! B2 b$ D
let sum-money 0
6 m0 w. E4 o# C, h) `" rwhile[j < [trade-record-one-len] of myself]
0 m5 _. h, N5 [6 k9 T[
4 p! ^$ D' e( fset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time); J) q4 y( r/ u
set j" O* g2 d, I7 j
( j + 1)6 d1 f! U4 P, M# v0 B0 i
]5 j- y# V9 F; H" H
let k 3# x2 T L* @- P3 [
let power 0
) M, B1 I' c) O, K& ^4 \let local 0
. e$ g' _# r0 D+ F% C7 Jwhile [k <[trade-record-one-len] of myself]6 ~7 X* T/ d9 C: n0 }
[+ |+ @7 j6 n2 u# r" H. B ]* L9 k2 }
set 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)
4 r4 _5 Y d/ ~1 ?set k (k + 1)
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set [local-reputation] of myself (local)! m8 w/ z% h5 u: h* y: z! t3 g* \; c
end. P" g. k' g$ E6 q6 o/ T
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to update-neighbor-total
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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end
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to update-credibility-ijl + e( P( I) m. P8 e' d
1 K8 J4 e0 ^# r; o;;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。& s p+ x6 h( n3 Z/ \$ K
let l 0
) y+ c7 b; m1 l1 n: ~while[ l < people ]* s3 n5 |8 P" c' r' I" p
;;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
8 ]" o' q {7 f- ?" X) ?8 T[, i3 W. a) o. r; k
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
$ `+ o* q. q% J2 l" Cif (trade-record-one-j-l-len > 3)7 I6 a& n& [, \: A1 k
[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
9 c2 z& o* \- T/ {! blet i 3
5 f/ U l% h8 b$ q* B" mlet sum-time 0
( _3 M' _' z4 W( awhile[i < trade-record-one-len]
( ^% P; T) f# O[
1 A, n6 d2 T% A" g' j9 Jset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )1 M; s' V5 m* A# `' z4 G
set i+ t7 B1 f5 @% Z* E2 k" D
( i + 1), g# g! ^3 z, f# p# L
]) G. g' Y- {( N( B: \
let credibility-i-j-l 0
7 ^- U0 N7 T. a2 D;;i评价(j对jl的评价)' V8 ~9 D# Y; {: u8 r: c; {
let j 3
6 I8 `1 Q/ B* l% Dlet k 4
& |9 e# C( w* L0 u& {, N' cwhile[j < trade-record-one-len]
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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# @ r$ t" Z( @8 ~* ?
set 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)
* H" a. i* d0 V% \3 X0 F! v0 b2 hset j
; ~ e$ }& B+ f, o* h" |* j5 p% @( j + 1)
! u+ z! j% _ ?+ v) l/ J]
6 e, X. V6 }! \% q$ V& N- xset [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 ))8 L+ ]3 @! A/ \: p3 Y9 O, V
; `+ ]* b0 u6 v' s: e* N
* h$ K0 D) s8 W. |. \
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))- R ]; A6 v, |- C3 v" `6 q/ a6 {
;;及时更新i对l的评价质量的评价$ `1 A. n+ a4 A3 ?
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
! t" s' @% s( A# {2 {set l (l + 1)& S M5 m1 v: [. e, ^& G& w
]
. S. b4 N0 m% `: a, Z( v; k8 t& bend1 Y) C9 p, @4 m% u- I9 X6 L
: C( J& r# x& [7 l: A
to update-credibility-list
5 M5 N; s A0 qlet i 08 D% z+ C2 }% ]% U$ N% j
while[i < people]5 A# `( A F5 _# a4 M
[
) M3 b' c/ q1 b" I. c% ulet j 0* U7 `4 j8 {5 u
let note 0
1 x7 J5 d+ u2 G7 alet k 0* `, e& ~) \* v: W* ]% n w* X
;;计作出过评价的邻居节点的数目( K3 N; N* V9 a7 V; ]# J" Z6 b' A
while[j < people]- z, v: J' c/ H0 e& k9 y
[1 K7 T: j0 q! k, p; ~
if (item j( [credibility] of turtle (i + 1)) != -1)# b- y1 k) f1 V0 |" w
;;判断是否给本turtle的评价质量做出过评价的节点
) J. T8 `" ~: o' o+ T! ?4 J[set note (note + item j ([credibility]of turtle (i + 1)))( U9 o: R: ~; g) `5 E$ p) E) a$ B
;;*(exp (-(people - 2)))/(people - 2))]
5 j3 F3 H6 s3 j/ Z: Mset k (k + 1)" c: f2 s3 t% J. t* G5 b
]
; E( g0 v2 x1 C1 O. N1 M7 G) Zset j (j + 1) e0 q: ]: L, i/ ^
]
/ l9 k: O2 E- k2 h. e: pset note (note *(exp (- (1 / k)))/ k)
$ G ]0 d: F, T8 Lset credibility-list (replace-item i credibility-list note)" C% h2 S2 q' ` A
set i (i + 1)
9 A' s/ c% ]# `# \; }]
' o4 g& K% \$ D' `0 b# z8 H& qend
5 i* s: M7 C1 p' A" I6 T9 Z
|) A Q5 C8 Jto update-global-reputation-list
* c# i# ]% {; w0 d! G, mlet j 0
2 v, E: h6 \/ F: L0 |6 qwhile[j < people]
, j2 k+ U! |: H[4 i. D- }0 g( ?4 p
let new 0
) Y4 b. O1 @1 }# H: h0 F( r" L;;暂存新的一个全局声誉. K4 p! v! C7 Z: W! Q
let i 0
# \$ J" e9 T% `) X* l5 Wlet sum-money 0
- A* J3 b& j5 F: u8 N7 h* {let credibility-money 0% m4 c1 ^5 I4 J) t; J1 U) y! [
while [i < people]
8 G( f; R& o; f' g& H' `9 |# t& N' K, M1 S[9 N% B6 _ s% h7 d
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))): { r! l! L9 j: n' G2 Z; ?
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))6 \$ c/ c* `7 u) b% P9 G* {
set i (i + 1)
$ `% }( t% m% k& f3 h" Q% I. y+ C]
; | Q& Q( L3 flet k 01 P# t0 P5 y+ h$ ?( L$ ^- S) a- Q
let new1 0
( x: h7 U$ }2 T2 f' E/ l% E/ q* Wwhile [k < people]
1 D* ?; U. T0 | y8 B/ K8 _. C- O5 v[0 P, V J0 T9 c# S# s- m
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)# ~6 ^4 \1 O* a) l4 \
set k (k + 1)8 q# G% M1 ?2 |$ ?3 g* X. L+ v4 z3 W
]) ^) d4 l6 E, e1 r: T) U- g1 [
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 5 o( ]4 i. n( {1 V: U4 p. I1 y
set global-reputation-list (replace-item j global-reputation-list new) O. J$ o" J6 t5 r- @7 c
set j (j + 1)* r" Q* k) n, m7 Z2 \8 U
]- B' ]0 `" D" p9 T7 u
end$ h4 F3 T$ _4 |# W% }- g% e. P. L
/ k! P$ q& R0 t0 E5 b# j
- w; x" O) ? W/ u# t" O
! R3 e% {( }. {9 w# \to get-color
; t" {7 Y: n$ a& j- L: N5 R2 i* [9 a9 r8 ]8 Q
set color blue
$ o# M$ Q( U# _& U$ Z" h send- ~ Y. ~$ N! v: m# H6 C
+ J+ }) |/ [( I
to poll-class
; S: u4 l# A& Z7 ^) e! Qend5 a# {, m/ \. H' L& C# B( e
; g: B# |* k' o
to setup-plot1
7 @" C2 W8 W1 @% u' H6 w' L5 Y" \. d& h% G$ U, I
set-current-plot "Trends-of-Local-reputation"4 b: [ t+ k- [5 C: {' Z
$ Z; l, G& Z; B) G' Oset-plot-x-range 0 xmax
# A6 K- i% i3 v+ x. i* C# m! v7 x) n, F
set-plot-y-range 0.0 ymax5 r5 @( P, D4 Q0 t! l [3 x
end' _: v5 R( _5 _) K
6 Z4 K w/ Q/ n8 Fto setup-plot2: X6 Z) K" V' a! q8 b
" [/ w) G# u& S+ nset-current-plot "Trends-of-global-reputation"
. [ e$ `" P! H, t5 K, t, P5 _/ Q; ^5 H- ]6 B) g4 C t7 z1 P9 [
set-plot-x-range 0 xmax1 P6 v+ V& ?2 E+ G4 C' m/ k
2 M7 K8 {. @- R" N' u
set-plot-y-range 0.0 ymax/ {& R# B# g* @; F
end0 j5 G5 \0 K9 m+ p; ^8 X
- e9 q7 n* d7 ~ y3 J
to setup-plot3
* |1 @4 ?" P* j g t7 `2 d2 d
5 b& N2 N0 Q0 b. Gset-current-plot "Trends-of-credibility"
* k- n$ b- n" r% }1 \) }
9 `& L8 t0 Y/ M( X# e% X- ?set-plot-x-range 0 xmax
1 F6 k4 H, y! o, T8 s) F; r4 a- g5 d4 c: w( o- v- A
set-plot-y-range 0.0 ymax
1 v/ Q* Y/ `" i0 |# ~+ L3 Y6 Iend
2 p+ l) d; q) {& g2 k* p
3 T0 k3 g0 H6 j# h1 `* W% oto do-plots1 y. \6 K/ v6 B$ T& K8 G+ n8 U
set-current-plot "Trends-of-Local-reputation"+ M" r9 X/ w) D8 [. |9 R1 z
set-current-plot-pen "Honest service"5 a; o) y K9 {/ P) h! I
end: [( R% t4 a" ]9 A+ X1 o
1 Z1 i) `+ Q* |6 c[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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