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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
$ J! ?- Z2 j" h, M6 Qglobals[
6 g1 U* L$ t+ F7 n7 ~! W) txmax7 \- N# k4 ~5 u9 m. y- g, y8 {
ymax
4 t3 j# d- j0 W3 H! r; lglobal-reputation-list- e& @- n, a4 f* H; T7 p
$ Q, \- R' z' I;;每一个turtle的全局声誉都存在此LIST中
! e4 d& E6 L5 xcredibility-list
, \) P$ X P( ^/ C. `& E- h9 ^, [;;每一个turtle的评价可信度) d. a N3 T" H& h) Y5 F! `3 p/ u
honest-service! h% m3 \& `" l+ Q" F4 Q8 H/ [
unhonest-service
- U/ ?4 ]) u1 Ooscillation
' q3 h- U B( \* j+ H' nrand-dynamic' K2 y/ h: o: O \$ {
]
$ Y7 i( Q! O. n7 }/ k0 B# y; Z$ Y2 l5 R5 S0 ^
turtles-own[
8 t7 I7 X6 Q+ dtrade-record-all
4 V& y& ^0 }! y;;a list of lists,由trade-record-one组成9 L- |/ Z! d2 f- ~% d9 j ^$ l) Y
trade-record-one3 ?6 X+ V/ r3 R6 F) D# C: q
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
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) b) b3 R( o- h7 u6 b" w;;[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]]6 F z9 j$ t2 b, F% k, [2 G
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]: {* \' T0 W' M* X
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list6 `% N E7 K$ }2 m
neighbor-total
4 w% `3 A5 V2 z v;;记录该turtle的邻居节点的数目/ r7 @+ j! w/ J: I# p) z7 j
trade-time
5 h9 \7 p8 y ^" J: l! k) B# J$ h;;当前发生交易的turtle的交易时间' Q1 e$ x" O k" h; {- W
appraise-give) L5 ^& C2 a4 z% u" A$ b5 h
;;当前发生交易时给出的评价) E; P3 k% J# U" {
appraise-receive# {+ M+ U0 D% X3 J7 H* B
;;当前发生交易时收到的评价
' M; x# R& E# ~2 S: v% H) [. Vappraise-time0 w7 U7 M x/ ^; W9 j" N0 r
;;当前发生交易时的评价时间/ b- U: n; w; `2 h; X' b/ O
local-reputation-now;;此次交易后相对于对方turtle的局部声誉8 ~. r* J, S5 `' F. @
trade-times-total$ P6 \" G" E' H: {6 ~
;;与当前turtle的交易总次数: K; q. K- r& |% v! d5 J5 |
trade-money-total
- |( r( a# ]* a* P# V1 v r8 L% K% J Z7 N/ l;;与当前turtle的交易总金额9 }$ g* p* s/ U
local-reputation: ?- y& t! Q: X0 V8 S
global-reputation
' B6 R; F- C( L1 M0 E; pcredibility3 J, V; U" f# C8 n
;;评价可信度,每次交易后都需要更新
+ g. a. ?$ w& ~0 T( Jcredibility-all- y* ~0 t# G& k) @4 m
;;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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;;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0.54 c5 j) Y1 x) ~" m6 P
credibility-one
4 ^+ D$ o: i; Q. l( v6 }# f8 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
, O0 `( U- X" V j! U1 X. ]global-proportion$ @- P" ^- }; Z' I- `
customer
' f' w3 j# H$ ?# L& F. ~customer-no' X; V" ^! ~% M: V# t# a/ T) R
trust-ok: y* c( j: t& ^: J
trade-record-one-len;;trade-record-one的长度
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( Y3 ~/ h& {8 h8 g/ a4 Y;;setup procedure( E$ ]6 g% D% w C2 U
. R1 {) w3 g) K0 S# yto setup
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ca
3 L M' P2 p) `$ E
& h" M4 z7 d6 G" ?0 I3 |- ~- m. Pinitialize-settings
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- z$ |: f y3 e. _crt people [setup-turtles]& K# R/ U6 ^) ?2 L. D+ S k
: y% s' S2 s0 nreset-timer% V5 Y& }' P- n/ m6 A* T& c" L
+ k; k# X' { |4 E3 T4 wpoll-class& A' C+ n* V% `# F: H" o
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setup-plots
: r" d8 b' h6 U) b9 k
. J6 i( f/ c; g) m- cdo-plots; [% _: u) p$ u' R6 }
end
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to initialize-settings
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set global-reputation-list []1 ?4 E( X1 Z* O0 k
0 x$ L8 R& E7 A- E) R* A/ b1 z& _set credibility-list n-values people [0.5]
2 H7 ~. y% T5 T6 t& ^) ?
* }( e$ T8 I+ pset honest-service 0: I/ ^3 i |. M$ |3 Q
9 A' f5 O' m! E) p% W5 a, T- `set unhonest-service 0- S; I6 `. J7 v1 g# B9 a% X
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set oscillation 0
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set rand-dynamic 0& v( i. o& ^0 h& B- P
end
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to setup-turtles : D t3 H0 a4 M3 O, @, V' N
set shape "person"% X" C I# x: F9 Z: r+ Q
setxy random-xcor random-ycor6 e1 i" F1 G4 P ?5 t# U- B
set trade-record-one []1 V% z4 ~5 n( n' W% d7 B9 x
3 i( \5 X; t/ u2 c9 Z7 r7 a/ wset trade-record-all n-values people [(list (? + 1) 0 0)]
5 y2 q* w: Y" l& T& c, P
( v' m0 e0 W0 |3 s$ p/ k6 mset trade-record-current [], K7 w1 v( D2 F7 X* G" ?
set credibility-receive []) V% B9 E: P! C6 C8 d0 E, X
set local-reputation 0.5
) G+ R) j* a! rset neighbor-total 03 G9 v, H$ J+ o% }& ]
set trade-times-total 07 ~; @2 E9 b! e! l$ |% c
set trade-money-total 0* y$ ?6 c E- R3 G- g7 e1 \' s7 a
set customer nobody
$ \& F1 w/ e" [set credibility-all n-values people [creat-credibility]
4 v' k h: f" g/ @3 x- nset credibility n-values people [-1]
6 _, W$ J3 I" U* p$ `4 [. Uget-color1 k' l$ d/ w: U3 B$ `2 M
* s ~3 ?* f+ s* t4 z4 L: L cend
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to-report creat-credibility+ F; S' t& i4 g5 r. k
report n-values people [0.5]
: \& B9 U+ O) v4 G3 Jend' @/ p" P/ K7 W8 v# B) r
) s C- n3 X' @ H( e4 c$ g) d8 r
to setup-plots4 v' ?$ T6 |8 L$ U
F1 [6 f4 P# i: ^8 a
set xmax 304 m' A+ o. _4 ~% h8 d
6 k6 U# M0 i, F5 lset ymax 1.0
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clear-all-plots
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+ P* t3 j v, R2 lsetup-plot14 K! L+ v8 J% C4 e
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setup-plot2
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+ j. E0 o% p/ g8 o1 r) Hsetup-plot3* ?" r8 q. W4 ~1 A( k; t% y
end
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7 {& l2 P I" Q# c4 B1 V;;run time procedures" i! A! B. V4 j4 _ p
) K6 w9 ^$ j# U' E8 B2 ~to go
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ask turtles [do-business]. R* ~8 a1 H9 u6 B+ D: B
end
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to do-business
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Y; [' s# o) E! V. ~8 ?/ prt random 360 C# g: e# V2 K/ N' W+ h
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ifelse(other turtles-here != nobody)[0 K: L V' ^! o
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set customer one-of other turtles-here
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;; set [customer] of customer myself& p9 K8 ]) I5 |, J% S; L- f$ n
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set [trade-record-one] of self item (([who] of customer) - 1)& ]6 m! x3 {; |# [; Y& k. g) l2 _
[trade-record-all]of self
6 U4 p1 |# ?3 s" E4 t;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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3 M2 U! O: U& n3 @1 |7 E" Zset [trade-record-one] of customer item (([who] of self) - 1)
" e7 b! ^4 R% I7 I[trade-record-all]of customer$ X7 C3 g& B# ]( u9 s
& K! A/ n' h- A3 z/ |set [trade-record-one-len] of self length [trade-record-one] of self
. {( `# ~ z9 G# e4 ]$ r# J9 i( B! m3 }. V
set trade-record-current( list (timer) (random money-upper-limit))
& k6 ?7 r% \) @9 f8 d' H, z; ], Y! Z& c$ ]% Q, W3 {6 o
ask self [do-trust]; A4 w! v5 y4 [+ K0 S7 F, {
;;先求i对j的信任度
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2 m& y R6 x4 Q5 k' |if ([trust-ok] of self)# T: |# h' |" N; s( k0 t
;;根据i对j的信任度来决定是否与j进行交易[
1 b( f) k/ b2 u6 L7 x8 Bask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself# z. X) x6 s% l9 a9 x8 o" M
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do-trade
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4 u' i- t) |5 G9 t) Tupdate-credibility-ijl
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update-credibility-list! d4 n1 R3 i% c' v K; y
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update-global-reputation-list1 x; c% u; j7 V( f2 F1 q
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poll-class6 P4 _0 {$ @1 w& o/ y0 n
5 X) h0 r% `' Z; _ Z
get-color
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]]
2 F; R/ g/ n& Y5 d/ |7 K
) g' ^- G+ b6 Y' [& a;;如果所得的信任度满足条件,则进行交易1 ?, S4 N7 B7 \6 X, Y( S: d) B
0 O) J2 k1 \9 z4 c5 f2 P2 e[
I6 c" y3 Z8 z
' R2 Z% a: v( ~3 l8 _9 ert random 360
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* g# E& s5 M4 L3 Rfd 1& _8 j) }" p$ H$ m. ]! Z8 r5 a% k
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]( {; u' ?4 C5 s6 R! P3 F
2 @, A+ D# {5 Q- Q7 f9 vend9 i3 l& @2 w; u) M& ]8 l
4 S+ v6 n$ t9 z- A; ]) G }to do-trust 9 Z1 i( v- T0 {; w* W
set trust-ok False
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let max-trade-times 0
8 V9 D1 X# H0 L* eforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]. j; Y5 B( P3 Q0 m' Z5 `
let max-trade-money 0
5 M0 x* q E/ m3 T* Fforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
1 e. |0 |0 k. v6 K/ ?) jlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
# s3 R1 K( l' H2 A# L, e
5 P( N E# ?" S2 b" f/ m
7 b+ I {1 l. C9 L5 {# Zget-global-proportion! \% o4 w& ?- b0 |9 \- ]
let trust-value/ X- g. X( ^. r+ `2 b2 H; w0 B' o
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): M5 s+ k- X8 Y7 W# Y" i2 h
if(trust-value > trade-trust-value)
. L& | h" F" b i: a2 \[set trust-ok true]2 o/ i0 N! O+ I0 y6 S0 d) x
end
* R( M" l1 q. t! A9 X7 G- h4 ?
- I) r! x" P8 W+ y g; kto get-global-proportion1 d9 N: x- v* S
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
. c" G8 b# z. i( S- ][set global-proportion 0]+ C1 y0 y9 p, A5 h' b1 a6 g
[let i 0( M: P8 ?5 D) P8 m' `9 j' Z0 x' [# j
let sum-money 0* k9 |& V- W+ T B o: \
while[ i < people]) p2 i7 _" b: ]5 k; \
[
" w) a& \% t4 G- j+ S7 Uif( length (item i
) b0 y: o; a( f[trade-record-all] of customer) > 3 )* m$ j- ~! B: z( J7 e5 K% h
[
7 S& v% S! N: c' I/ L$ Fset sum-money (sum-money + item 2(item i [trade-record-all] of myself))- m5 B/ {9 _* c9 ^
]
7 S9 M# a% p7 K8 b9 V8 d6 d. q]! H8 H8 n% }/ x5 q' n6 z9 l
let j 0
) `2 P2 P2 d7 n( l Ilet note 0
; r ?' K. i- F) J& b ]while[ j < people]; l6 `* L* Y7 _! [2 U5 {/ z
[$ g6 y# V2 y' A0 f w
if( length (item i
( _4 [. f! G7 q" F: a[trade-record-all] of customer) > 3 )& ]" k' ]+ D$ L4 \$ b
[- d9 }4 c7 ~" e0 n
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1): y4 V4 j2 m _2 P
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
( Q0 d: r2 \( |2 {1 B0 ][set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
* n. h: p& K3 B) k' e]
) S% q; _" ]4 `/ u# U' y) w]
) r7 B, Q6 z2 x" Lset global-proportion note4 K: I) a1 a$ p3 L$ ?1 W
]
2 c/ K* a. v' c% s# oend8 y* ?( d& q4 h, n' P N7 K1 }# Z
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to do-trade
r3 ~ x, o' s& ?; K& j;;这个过程实际上是给双方作出评价的过程, M# }, `8 { p
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价8 ]) ~ I7 b1 l9 g7 Z# c( z2 ~% O
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价7 @7 Z2 l5 z; d- m c3 v
set trade-record-current lput(timer) trade-record-current1 o2 O1 s M6 J' t
;;评价时间9 Q) b, F$ t) d y+ c
ask myself [0 Z" T4 H: k- O5 H) W: n
update-local-reputation5 v/ n. @0 m+ ~2 e2 i
set trade-record-current lput([local-reputation] of myself) trade-record-current
7 |; {: A# _/ Z]9 O& A% v6 O8 V% \( a
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself( w5 d. U |/ _- ~
;;将此次交易的记录加入到trade-record-one中
1 j. P% z) w8 B$ L, B0 Eset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)2 }' q+ w$ G( G0 ^. z" T
let note (item 2 trade-record-current )
# b4 |& {3 A' Q) q9 \set trade-record-current+ S |2 [! Q& U& U$ K
(replace-item 2 trade-record-current (item 3 trade-record-current))
* n8 Z; F, ?- yset trade-record-current s% O5 y& b, E2 X. i1 A8 }
(replace-item 3 trade-record-current note)
1 `7 V$ i8 `& H4 Q# p) B
9 f6 {" X& s1 R' ]0 r; q3 B
) e* _9 `2 |! u( j& A# u- Yask customer [
/ p) \6 G+ w; a/ E3 U% Bupdate-local-reputation! _; V( v# i g3 `& R
set trade-record-current
, O" @2 T% H% K$ s! w! F, L8 ~( o(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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+ [# W8 O# I2 N6 h1 F/ i
# s* `5 K' N. ]* U5 [
4 n5 L4 Z3 p( q( O8 l Gset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
* K0 u* p8 b/ E8 `) A+ U- M( H* A* j2 t \
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))9 C$ c% B' l3 Y1 S! C5 `
;;将此次交易的记录加入到customer的trade-record-all中% e" w5 G G6 e3 e' \
end2 ^- m8 m! H/ i9 e" ?2 k
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to update-local-reputation8 Q" o" `; J) z2 {$ s
set [trade-record-one-len] of myself length [trade-record-one] of myself/ K3 L9 k4 J# ?9 s% ?9 T
. \& e c: m, p9 {% G; l: b# g Z8 ~
;;if [trade-record-one-len] of myself > 3
2 h9 c6 u* i/ H# B; {update-neighbor-total9 ]/ |$ C- B$ {' B f9 R0 ]
;;更新邻居节点的数目,在此进行6 ]9 ?$ E% c- g) b/ C
let i 3- e3 E8 _) ~" x8 B
let sum-time 0$ |; O E- I7 g& z6 D) s
while[i < [trade-record-one-len] of myself]
/ @1 ]# ` ]$ Q% o" [; |7 }% N* c[2 a1 M8 @- }1 s+ l: _, }
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
* V7 O0 v. N( [5 k" Wset i
$ R a ?1 _% t" Y( i + 1)% P D, T6 @7 @- e }" g( i* A* U
]
4 r! F7 K/ Y6 W2 H( z% d) [let j 38 \0 M1 R8 j) D1 L
let sum-money 0: Z& Y: P( S2 x
while[j < [trade-record-one-len] of myself]$ r( y+ {# F! C( }( `
[; r! o7 j1 k2 o3 I: ]/ Y3 R5 A! m
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)# s# Z4 [$ `7 X
set j
% p* n% I1 W$ x' r6 F% C8 Q/ @; @( j + 1)( `( z8 j6 w' A f
]
6 |: e* x2 u+ K' _! j9 h- jlet k 3# n3 [, E' H1 f; B
let power 0
9 w, ]# u A+ f" Elet local 02 B& I' `& c$ y- _8 j
while [k <[trade-record-one-len] of myself]* V) b7 w- h9 Z& i
[. k2 J0 {2 s( d. b; S
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) 2 B" A! U% ^ u/ m, M+ q
set k (k + 1)0 p. H m) I" E7 b5 }
]
& x4 P1 B, \. x: O. o) D5 zset [local-reputation] of myself (local)5 G" J) n& f# t
end, H! s7 {# o& O9 q5 ~* V
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to update-neighbor-total; ~- y1 @$ a% _: Q
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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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z$ {! V. O+ {1 Yto update-credibility-ijl
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2 N/ }- P t5 {5 i b;;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。
/ l! B$ k$ a, q; nlet l 0
8 x1 ~# l) g# N- c. b# }while[ l < people ]
% `9 V3 F' G0 G;;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
5 i& Z+ \! O! o[8 d8 a, @6 [% D! @: ]- S1 v4 t
let trade-record-one-j-l-len length item l ([trade-record-all] of customer): X0 {9 s) k7 O+ N K6 i0 N
if (trade-record-one-j-l-len > 3)$ k! Y# F; \% b! g1 g
[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
( g% d% a5 o9 p4 F9 wlet i 3
# J; f8 u: J" Q9 J+ Ilet sum-time 0
0 ~; l3 I! u7 B+ z0 }& ewhile[i < trade-record-one-len]
/ m I& m! W$ W- R6 v# f5 \1 X, o[
4 n5 U5 F5 j2 H7 Z8 [0 Lset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )5 P% D' R4 a8 C! r' v# V
set i+ \3 \ C" t' Z7 |5 M$ ?( V, p2 U
( i + 1)
0 ]% F6 s( |9 Z% ?6 p! S]
4 `" i T9 Q4 _: D; P" X' d) mlet credibility-i-j-l 0
, Z/ K# m O2 ~3 k* Y. i$ G# y% \;;i评价(j对jl的评价)" U& }, j* j0 t0 _
let j 3
/ _- Z6 O) i2 Q& n" q+ A$ hlet k 4
* F: V0 B; W R9 r0 `: [: iwhile[j < trade-record-one-len]
, K! |# d9 l% i[
$ @, d& \! D, \/ r. w% qwhile [((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
0 C ]. {7 `/ d. V! K5 x: oset 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)1 I& V- I$ T% }, Y7 m, o, f. j
set j
) w6 @1 n3 k5 c' o7 b# ?( j + 1)
. }/ i8 N- l3 B( c% ~]) X2 J4 ` u8 P5 R# r' l- ^
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 ))- s; J8 I" H# W. m9 d
% ^- m# K7 j0 }7 _5 @! ?
$ w7 Z% C, U$ d% r `
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
# E S9 y' g7 U6 M' ];;及时更新i对l的评价质量的评价2 V0 _, k; t% q3 l
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]. D# m q! I( S5 P( A2 s
set l (l + 1)
: n; O% u! n- r7 n! {. ?]2 L& Q. l9 U! S' W) L9 l; Y" S5 r
end
: j4 P$ Q# O h
. J, H' _# g3 I1 r2 X7 Sto update-credibility-list
" H4 F9 w1 V/ {6 p+ [0 `let i 0& _# H% O4 j! s
while[i < people]" v7 U4 E, c5 A- |1 Z: ?
[1 c0 a/ t8 K$ j) T
let j 0, n9 {+ }0 o% D8 B P# R$ p* k
let note 0
3 o; e" I: o8 a" z; ?let k 01 e5 H4 b# j8 j2 m& o
;;计作出过评价的邻居节点的数目- y0 y0 Y5 v. M3 W* P' ]8 u
while[j < people]
- S& i( S5 c5 |' o4 b[! J0 d( M p+ F* I7 K
if (item j( [credibility] of turtle (i + 1)) != -1)
9 I% ^+ _. M1 S8 |% u8 i;;判断是否给本turtle的评价质量做出过评价的节点8 Z8 e* l' O. I
[set note (note + item j ([credibility]of turtle (i + 1)))4 U- |0 R' [' a1 b6 ]2 v3 U) l& `
;;*(exp (-(people - 2)))/(people - 2))]/ ?, |7 x; ]/ m
set k (k + 1)
8 }" b' w' ?; e3 A0 o]% t& y; z/ Q+ C
set j (j + 1)
! ^5 q, J3 _; c( n1 M4 A5 v4 b]0 C: r0 }' Y" ~7 e& C
set note (note *(exp (- (1 / k)))/ k)5 Y9 R4 g3 h% M. S; h' ?# l
set credibility-list (replace-item i credibility-list note)2 S# J0 \: X6 J I0 H4 J% h2 R# {4 J
set i (i + 1)6 n( W/ B4 r7 v* q7 t, Q& l/ B' m8 C' x
]2 V& o! s2 o; E1 Z/ R7 i0 T- J+ g
end( ?+ y' O* U# ]4 K) J ^
1 S# s6 S4 c# [* Cto update-global-reputation-list+ F3 h. O* p+ r$ b
let j 0* t7 U" Z3 N3 l7 u
while[j < people]
3 t1 \. s; p9 h; P; }+ w- X[3 s- H) p1 A+ h; P- I( i: U
let new 0
C& t" E1 k6 n;;暂存新的一个全局声誉
' C& }; `1 \; E' klet i 0$ _- t" Z- @' `( j- N" L
let sum-money 0
) o& }9 y# r/ N/ j/ T) b: s% i% x6 Olet credibility-money 0
# o; ?" f0 A5 ?2 v _- R: iwhile [i < people]
% f* A1 v2 ]! y[
8 S, T# l3 d4 @, N& Xset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
& [# w. w! i+ Gset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
6 J9 p/ j3 M: N! Wset i (i + 1)' ^) M8 h1 }( _5 E* u0 g+ `
]3 ?" w* C1 A( Y4 {
let k 0
1 U8 i! o% h5 ~( ^let new1 05 a1 |* n% s2 L& G8 R
while [k < people]
# ]% p. r" X- |[
. A+ r& r, ?. [ U4 Zset 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)/ ]& o# j3 V& ]/ l
set k (k + 1)" h6 X* u1 @5 b* p( R# O" P5 S
]
. j- S: q& P0 Vset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) $ N5 A4 T, M+ s, b
set global-reputation-list (replace-item j global-reputation-list new)
7 C9 k: o, m* |8 i0 F2 c0 n1 wset j (j + 1)
+ v" W* ~; n! U, ?4 m6 S3 W]
) q$ u/ }3 D* X, H# w! Dend
5 {( G2 f8 b. j" z( Y( n2 k. j4 f1 x5 k, y
5 P5 R( w2 {0 x- L* W% {
4 N3 [% c9 E+ E( `; f8 Z, }0 [to get-color
) S D$ D: m' D* p8 g4 r" I) U ]% w( J" x: E' u' I
set color blue
. W& t( |) U9 aend
/ |: | T& e$ u5 [$ R# W6 l& G% D3 h7 A% X5 k5 e: z5 C
to poll-class# G. V3 P( M/ }
end8 \3 w3 Q# H) Z3 p( X+ F3 a( P' e& |2 l
7 E ~$ {# q/ X
to setup-plot10 U( n: s" \9 i; C
' w# W. U3 `/ R( s" Y6 E
set-current-plot "Trends-of-Local-reputation"
0 W) n/ E4 q5 D3 K! l6 C/ o' y& N; V$ `" v9 O
set-plot-x-range 0 xmax
& J1 C9 O" o& N
3 Q" F$ }3 v: k4 [. I5 F, g6 ?6 Gset-plot-y-range 0.0 ymax: O3 e! |3 B- W* |/ }. {' b
end
% \! @8 E! V# O _" d. Q R! ?# V3 r2 a
to setup-plot21 F0 ?4 n. I/ H3 ~: E# c
0 x+ ~4 Y2 f7 s0 a; j j2 }" ?
set-current-plot "Trends-of-global-reputation"# Q( g" c) f7 V, _
0 T4 [; n8 v; s* v. e8 qset-plot-x-range 0 xmax/ r& Z# t( ^0 T" ]$ i
~& d: B( N. g. dset-plot-y-range 0.0 ymax/ G! ]' q1 f/ e
end+ t% A& ~, C. Q2 L/ t/ Z
7 }; l! Q2 \9 O' q$ p7 h# Y
to setup-plot3( P, O5 l8 p% [5 G4 z0 C6 x, H
9 W7 b8 K& g3 Y" s
set-current-plot "Trends-of-credibility"
3 p- d0 U7 R) J# d& O) m6 z* d" \) g$ e! t5 D5 o6 q
set-plot-x-range 0 xmax
/ y9 Z( C; ~0 f8 z# x! r
2 e( z) I: w* R v9 Rset-plot-y-range 0.0 ymax
7 N" i$ t* l! Y/ ~3 @end* C- X4 y7 V$ ?# c7 K6 ~& R
, Z$ P! Z! a$ L( `% r7 ^2 a
to do-plots
7 d e9 p9 @/ b( H* `set-current-plot "Trends-of-Local-reputation"
8 i8 t1 ~* Y2 R# u: Q& ?$ Pset-current-plot-pen "Honest service"
* h W4 y% F/ W& C% x* U0 Qend o+ D& g4 x1 i/ U- F9 o* n& d
) @$ c0 i* J! v1 H! ^2 [4 l[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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