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[交流] 关于turtle的使用问题

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发表于 2008-3-14 16:14:39 | 显示全部楼层 |阅读模式
我将customer设为 turtles-own,初始值赋为-1,为的是当turtle遇到同伴时就将其中的一个turtle认为自己的customer,然后进行交易,如下:
; n5 _$ \/ [0 E0 uto do-business - E4 L% V3 Q( O3 |# }
rt random 360; y! S. v' _5 c' g8 {; [$ w0 X
fd 15 B. t: q- O1 Z5 M, `: ?
ifelse(other turtles-here != nobody)[& S' A+ M  [; p4 i: _( u
   set customer one-of other turtles-here ;;这样一来,customer不代表了一个turtle吗?但在运行时出现了问题.
! B; H& e: W9 }7 Z# ]+ U   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    / y" P9 L. E$ H# q
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer2 ]& T( L" i1 @2 e9 O) z/ B
   set [trade-record-one-len] of self length [trade-record-one] of self
9 Z2 T# ~2 L) Y: {9 F. V   set trade-record-current( list (timer) (random money-upper-limit))9 Q8 g, b9 }9 [" o* W8 i
% _1 F. j2 M% z
问题的提示如下:. |5 D8 L# R$ G9 \7 |$ t1 C7 K- g
/ s0 j/ f! f  w0 y3 j1 C! N* K
error while turtle 50 running OF in procedure DO-BUSINESS7 Z4 o$ n- [+ d5 Q3 X' Y( k
  called by procedure GO& {+ e9 B& H9 o, Z3 V
OF expected input to be a turtle agentset or turtle but got NOBODY instead.! }# v- H4 H  M) A5 D2 s
(halted running of go)
3 H4 I! a7 D; T0 y* P: Z  X2 U8 Q
7 m+ ]! u+ b3 w; r  ]这是为什么呢?我看到一些netlogo中自带的例子也是用这种方法来找turtle的同伴的啊?期待高手解答~~
2 l- s. t* N- G* r. Q& g另外,我用([who] of customer)来获取turtle的编号的方法对的吗?如  set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    中.

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发表于 2008-3-17 17:34:20 | 显示全部楼层

资料不全

你把你的所有程序传上来我看一下,估计不是大问题。(南京大学)
 楼主| 发表于 2008-3-18 13:10:54 | 显示全部楼层
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
: E9 I; y& R  m4 oglobals[
( n$ W4 k4 C3 G# n+ Xxmax
5 _% K8 T" T' h% [" [+ tymax; B* R- C& Y1 g8 C
global-reputation-list
4 |% @% ]- G$ E+ E8 b9 D+ x6 ]7 H" z  J! H9 ?9 ~
;;
每一个turtle的全局声誉都存在此LIST
) t9 F5 O: V% jcredibility-list
  g# C- g& S/ x& U;;
每一个turtle的评价可信度
; N; Q6 b3 w. u1 B  k6 Whonest-service
( S# O9 F* [- q4 @6 J! h4 i; i- Kunhonest-service3 B- b9 F6 N- n
oscillation& A) b% o5 D1 l3 L
rand-dynamic" l1 \& y! Z( b9 z$ G! z
]: r) }( }- A& ~
* ~" w# O/ \& S% q, m1 u
turtles-own[1 r- f) C6 f  A, w6 o
trade-record-all2 F0 k( m1 c! {4 |# `, [) z& A
;;a list of lists,
trade-record-one组成
$ P+ p! r! ^( Z1 N; btrade-record-one, Z6 b% F3 G& F# w* E2 E
;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录) x; c( g6 P% K. B
, w" M. D% c8 q, }) n% k
;;[
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]]7 L( z; t  m. M' Q9 n
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]
* M2 d# ]# y4 z$ h9 S# J& w& ccredibility-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/ C( L. E1 P. V$ M+ ?
neighbor-total
; @  G4 {% D/ {3 @3 L;;
记录该turtle的邻居节点的数目
; ~7 o) B  @* }- ~trade-time
. `( v% x! I/ W6 f/ R;;
当前发生交易的turtle的交易时间& y1 O' W+ q6 D- k5 b- E6 v
appraise-give
9 Z/ ^0 Z4 k) M8 v;;
当前发生交易时给出的评价) U' Y9 C' p3 ^, f2 R
appraise-receive
" `! G4 j! f" q5 J0 u% H2 m;;
当前发生交易时收到的评价7 G0 ?% J9 J0 p
appraise-time
/ \8 F2 ?$ `3 z4 z5 t- ?;;
当前发生交易时的评价时间
  H1 \! t3 ]2 P9 m1 Z% [" jlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉; i: M& @  a8 m. }
trade-times-total. x- Z: t# z+ J% c2 p. a
;;
与当前turtle的交易总次数
& a  t. @1 ^! M( @; d8 o) _, ctrade-money-total  t1 `/ K6 R! @6 v1 J* p5 U, T$ W
;;
与当前turtle的交易总金额
" H, ^6 V0 S' I$ q  y- {local-reputation  Y  H+ w( q7 B% }+ y% T! M
global-reputation, y) e: ?& A; q  w3 ^  W7 }
credibility3 J5 W' j) V8 z: ?( _
;;
评价可信度,每次交易后都需要更新
% s1 x( x5 z/ W8 @3 @) s% V3 a  f; N# Kcredibility-all" N% x& f$ O& A+ f8 F6 ]
;;a list of lists,
credibility-one组成。[[1j的评价质量的评价][2j的评价质量的评价]……[ij的评价质量的评价]……],其中一共有people项,根据8 Q: M7 I, c6 c+ l: W

2 x% d8 o7 V: N4 {;;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0.58 [$ W. x$ I7 K
credibility-one; D" ^. D) u3 W0 t6 A* u( [. r
;;a list [i
j1的评价的质量评价,ij2的评价的质量评价……],其中一共有people
, i6 Z5 I) M+ s  |+ aglobal-proportion/ N# w( Z# ?3 ~5 T) {
customer
6 R# J" c: r- p/ j& bcustomer-no
: e5 ~7 m& b: f+ Ntrust-ok7 \2 Q; {+ {8 F# S/ E' k! i8 Y8 e
trade-record-one-len;;trade-record-one的长度
# L3 b% D' Z4 |]
5 G5 W5 e8 E1 m; B0 b  m5 U; X) N" q1 }: K4 t6 [0 o5 i
;;setup procedure
" ?2 m3 @1 m" E7 `9 h! P
) c' k/ g7 A& g4 qto setup* Y! W$ F( r" A& l/ l+ G

  B6 ]2 i9 S: g2 n# B3 ~2 aca

, o: K( Z7 x0 L2 h. k) N
5 S) H( [1 q# n& _, Y& J2 H# Ginitialize-settings
4 T5 }( a, J+ I; ^6 g; |- `
/ X0 H3 u( d7 f" H
crt people [setup-turtles]
: l0 O! n) @/ s

+ _$ }, [# R5 C) d5 Y% }- creset-timer

8 ]* a, O5 }6 T& O
# O6 j8 E7 _1 \2 f' P- ypoll-class

+ W* h$ i- A. b( q3 ^* n: b
/ l6 H7 P- T/ C3 q  ~% Lsetup-plots

* l; M% m) Q( _$ [6 P4 ^" J3 q
% J$ A  i) M7 M2 y0 Y9 f2 w: v7 |: Odo-plots
6 Z3 @) k1 p0 b
end
5 A8 g  U3 h  T- h% v# @
/ |# l8 ~! W( ]+ y( S/ C  v1 pto initialize-settings
1 X, m& p8 K  Q# R2 X7 L
4 W% O; E- v. m; y8 v7 @" J% l) u  ?set global-reputation-list []

8 L# F9 D4 Q' O7 U5 ]/ \1 K! l; J( Y) D+ c1 x+ l2 a9 P5 i7 O
set credibility-list n-values people [0.5]

2 U, m' ?& s9 }: q5 ^5 k9 ]( \9 `, |) C! X! {
set honest-service 0
( z# _* V- N& m: k7 D
! [( e! l' S- _2 @
set unhonest-service 0
: v( B6 ~4 |8 h" t7 S# B7 y
6 ]  H* ~; y! {& v
set oscillation 0
4 W. P  u; O5 I3 L

, n0 y9 c' b2 P1 l1 X) Rset rand-dynamic 0
. }7 |' f) L7 w: Z
end$ c+ @+ B( ~& j. q# c
6 n" F0 M. n" L' \
to setup-turtles ) M8 H  X6 e3 K
set shape "person"! {# {3 k8 {9 t) M" i) t* L/ Y, ]
setxy random-xcor random-ycor, g2 q' a* w  J+ h# _1 K9 ?+ w
set trade-record-one []
2 f, E& ^  l0 p' v0 w- z: O( |
8 L$ L* m) T. q& n3 {  O. W2 P& O
set trade-record-all n-values people [(list (? + 1) 0 0)]
. p  l: R% }2 a# H, z

: x; c! V  O4 K- `' v* j4 c. n8 Qset trade-record-current []% Z- B& g" t7 H; G0 |$ |' h) i
set credibility-receive []4 A0 n& l" {3 j- u
set local-reputation 0.5
$ Z/ U* e3 ~9 lset neighbor-total 0
& h. P" D- t3 Y$ eset trade-times-total 07 l6 i6 N) x: r$ R  L
set trade-money-total 0
* ]& b" I- Y9 t& dset customer nobody
4 m2 E& Z1 X* }" w5 E, Tset credibility-all n-values people [creat-credibility]
0 `0 S  b& G$ p$ O' P# K" Uset credibility n-values people [-1]  N0 A! A7 K! l8 L  c: W' r. Q
get-color& v) H2 g" i6 W/ J) K1 g

" F$ P3 w. V" N4 T) N7 F6 O0 Nend
6 k% ]7 ]% Z8 M! I% P0 d0 j6 H4 q
to-report creat-credibility
. ]% g3 T. O' Y6 greport n-values people [0.5]2 |1 k6 r! g! U& S$ p% z5 K8 {
end" v/ i' Y3 N6 [' |* V" R
7 v& `3 W. V: O' t5 c
to setup-plots
. \0 c) W( U( G/ A2 @' g2 }) @: H# S  ?7 L; g. B; t; I2 ?" B
set xmax 30
) V; n* z4 f$ G. M

% z) u! n8 U: C, r- m/ oset ymax 1.0
8 R* Q9 _. Q% q, U1 W) i

: `9 V+ m2 U. q5 hclear-all-plots

' A4 j3 n* q+ m* X+ d5 e, A* X* i6 g- V
setup-plot1

0 X9 R$ }: z' X! n$ X# j: [( T" n) k3 T
setup-plot2
( D. s4 j2 ]3 _8 }: S3 p+ G
+ W4 V- j6 J" s! R! _
setup-plot3
( H/ h6 G# p, T" s2 d
end
1 T2 f' h0 ^1 `8 \
7 m/ ], m6 Z6 T6 k. Y;;run time procedures
  S5 \% Y' v+ h8 Z
, d6 f4 x2 j8 v3 W# [& vto go
7 M7 ~6 q! M/ ]$ @2 a9 L' |  m" m$ k
ask turtles [do-business]

7 N" l4 ?' X! Nend. k5 I$ J. N$ M) f1 s; |7 F( m, s

2 }2 V  O. U) Z+ o" ~6 rto do-business 2 B4 F8 F. m1 Z, u/ |
5 B% D2 y7 p0 L* a
2 E2 T/ I8 R- K; O5 g3 B
rt random 360

3 l5 K3 |# G2 p. e. }4 t, r; I1 C7 _& E! f' Z9 h. e: p4 j
fd 1
* P. J6 y' C) G, A7 F
# B  m  U  J7 L% M) n
ifelse(other turtles-here != nobody)[

; J! \0 ~$ K8 Q
7 O# b/ T- g  o5 Dset customer one-of other turtles-here
# F" Z. v% e+ ]) h! Z

: L0 g3 \9 h& z9 o;; set [customer] of customer myself

4 r6 P( l- P. H+ I; J' W2 F: ?- [
; }5 U' r; ~; @set [trade-record-one] of self item (([who] of customer) - 1)
( h' t8 g; b2 O[trade-record-all]of self
2 c8 _7 _" L  r;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
$ u* X+ v0 V6 A) @' l+ @

7 O) S1 E- R/ U4 [& kset [trade-record-one] of customer item (([who] of self) - 1)2 J2 r) Y' T! y6 W2 C8 _% \+ d
[trade-record-all]of customer

7 I( k7 {& N1 G* I5 F/ ]& W" B0 s+ B
& m* V0 E- N- }% T4 bset [trade-record-one-len] of self length [trade-record-one] of self
4 X6 ]' ], W# ~# D- H  G6 S

$ D5 E: x8 U1 Tset trade-record-current( list (timer) (random money-upper-limit))
# e1 p5 B2 O' G- b) t

/ ]+ [+ x9 C; L$ p# C' F7 hask self [do-trust]
1 w1 x5 x9 s4 A( q4 P;;
先求ij的信任度! N8 e) a7 Z: `1 H, M. S& `
1 q# C" ^- _, c% Q. f0 W
if ([trust-ok] of self)+ V0 I( ?: K* s
;;
根据ij的信任度来决定是否与j进行交易[
0 S0 g2 c$ S6 R( Z0 g: Rask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
6 }& H/ z* `  a  n$ y" m) L
$ j# F. U8 D2 D" g[

' m& E# s7 P/ a+ m: e2 Z3 C" }+ e# C8 _- O) z: P
do-trade

& b; G. E, m; o1 A5 G: M* P; ?; W1 d+ w- o5 N1 L/ c; |
update-credibility-ijl

; O. M" X) d$ c: i
# J- }  O" {$ Iupdate-credibility-list
* f& C% i: Y6 l: U# M  F+ a

' i. G  n9 g% k8 I& p. J0 \' k
" l; C3 \3 O) Lupdate-global-reputation-list

% z+ U# V: t8 v  t- q. k4 z3 A8 b* r* Q0 P* c
poll-class
' I- O' O/ h% \/ D1 Z2 a) \

- K2 d/ {% \) o' D/ m* pget-color

6 r% y! p# K" [" |2 i
( y9 ^1 J# m5 h& R( B1 A8 p]]
; `. @3 }! m5 a$ J7 C* D- c+ O: U, o' w6 F( G/ M0 e8 R0 S
;;
如果所得的信任度满足条件,则进行交易
5 p1 I. |& g' L4 N/ x# y: d
6 @- a2 O' C+ n: L/ O  _) I[

5 ]3 A* h9 h0 b$ f; O+ L' F( Q" r4 i) K% }/ C  ]  ^* i
rt random 360

+ [7 G) R- b: V' ^2 A/ n# c+ t" U/ U
fd 1
$ `9 P8 Z' J9 Z. o" ^2 I! Q

8 n! }( [- G  U* C' A0 \/ q0 Y]
- F3 N. K5 Y* ^6 ?* |6 }- P7 |

" q) S$ G0 h% Q% J( ~8 B( Mend

' z. C. G( q& Y4 r' A7 k
  y* e, ~/ |5 Q9 x! u7 w& e7 ^to do-trust
# o# N3 k. w3 ^/ rset trust-ok False
6 P7 n: e7 Z/ o) `* {0 x% C: p( ~5 E' L6 g3 j& ]! G2 e$ B0 ]

" ~0 W7 {, F) m) d7 o0 alet max-trade-times 0
' T/ d# Z' X- nforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
5 P/ _. d  W+ b6 `- Hlet max-trade-money 0
+ O" v2 q, Q* {# ^* eforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]+ A8 f  ]1 M% K0 Z5 I) g- h
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
# U! |. }8 K5 n* p* L4 o4 U+ X" Z* C; H* P8 `& I, o
4 f, }. _; S1 A3 h  d, F1 @( Y+ ^
get-global-proportion
2 M8 R% n* k% p9 dlet trust-value) |7 |- _* K  V& w8 l6 Y
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)
/ C5 ~5 t# k- r3 K
if(trust-value > trade-trust-value)/ V3 a2 }  ^) X
[set trust-ok true]# _' o; {) K% L
end
- r* }! {! o6 |
* S) h# ?3 S" X7 ^4 B+ Yto get-global-proportion+ v9 `! t* ?. m' R+ r3 C: I8 A
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)9 O6 X* Y9 x( B0 W) A
[set global-proportion 0]
# F) Z( F, G& G0 j[let i 0; [- M- m+ P$ e/ q8 H
let sum-money 06 q9 c2 K9 i8 S
while[ i < people]6 J% o8 e; f: [
[( v  Z6 j  J2 t5 x. B. ?6 S
if( length (item i
5 u8 E" J+ d5 W0 b8 _[trade-record-all] of customer) > 3 )
" b( S6 {* o0 C" p; I: ]
[
3 }* g* d- @' I( @. Fset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
* ?) R% s6 Z, O8 \! v3 S]5 _5 T% Z" p) J% e8 C
]
1 l- O( L4 H9 I; f6 K! ?. y0 ?8 F# Xlet j 04 O! q9 }9 C0 R: ?+ o+ {! F) X
let note 0
* V4 d( J. C" ?1 o5 N! jwhile[ j < people]8 ?! W5 h$ B: V( n
[. G5 ^! V, H/ |, r- v7 P
if( length (item i
- E2 B" H( P% @6 ^* C  b5 W[trade-record-all] of customer) > 3 )
. _2 C$ A+ V( H$ O9 c4 C+ n
[) ?' r/ Y, g& f6 Q" y) ]
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)$ o' s2 m% C& U' I9 o# X; q
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]" n: M; E3 u  h3 S  ~
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]6 |; B" Z7 G/ i  ~0 c1 z/ x
]. w; a! i8 \, J8 P6 Y2 S4 ~( d
]$ N; K$ H0 g% Q# y8 }$ j6 S* _/ M' E
set global-proportion note7 [4 O8 u; u) D. @5 C( x
]
; Z9 r4 Q, o, X( ?4 z$ vend
0 i) u4 z1 D) I; j$ W
6 ^2 y; c1 n* U* ?1 }to do-trade
& W7 r! w, b$ e: m;;
这个过程实际上是给双方作出评价的过程7 a, H; H0 E' h: F& c8 E
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
4 s( G3 @* e! t& K+ F. V% Xset trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价
' ?$ t, l% Y/ B1 p# @- b  c1 Yset trade-record-current lput(timer) trade-record-current
# k& V1 j$ d- i, x. [- S; x' N;;
评价时间
% u7 x$ T% D. u1 H1 R9 t+ Rask myself [
5 U. Z5 B* W0 Zupdate-local-reputation
; t! r0 v' ^8 }1 X! |7 K7 M9 |% Kset trade-record-current lput([local-reputation] of myself) trade-record-current% z5 }4 ^4 D% F* ^0 v
]
0 c& i! |" d$ {! I3 v9 O* p4 bset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself* s7 Y- Y1 F1 |2 t/ u
;;
将此次交易的记录加入到trade-record-one
3 H/ q: J; T& T$ i1 Qset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)" ?" z  f  D# S) w& ^5 [  u( J0 h# \
let note (item 2 trade-record-current )
4 S% w" v2 L, c* l+ Vset trade-record-current
9 U$ e9 J3 b1 r$ S/ `$ E(replace-item 2 trade-record-current (item 3 trade-record-current))

4 f' f+ h% ]$ v0 R4 `set trade-record-current
6 x: R$ H* y& ?! q' K" z(replace-item 3 trade-record-current note)
( T: }* G* w( [3 N/ S( m) O
' x0 d5 B  ^4 c1 `' t+ [4 }
: P8 i; \& o+ W' O/ ?
ask customer [- c* ~. {- y9 E1 p1 F. {8 C
update-local-reputation9 M: `0 I% [8 \: r  T) s4 J, v8 X9 s
set trade-record-current  O; t7 O# p/ i
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))

3 Q8 Q, `) e4 ]) j$ y]
+ k% r* A7 p6 S3 f8 u( i2 r2 W9 q) S0 z. q
$ X  n, [1 w. f7 e+ a& }
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer5 |9 z* a! \/ b' ?. k

0 u6 z7 `7 |1 j  aset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
9 i% A3 Z1 [  B  ?+ [;;
将此次交易的记录加入到customertrade-record-all
  A( Z! Y7 R% X8 wend7 U# k) K% \8 ^: H; [1 P

7 y  ]0 v  S, Jto update-local-reputation
' C$ g* t1 F8 N1 H) l! {$ }. U0 v% lset [trade-record-one-len] of myself length [trade-record-one] of myself
! J/ R6 {$ W2 K. f4 x: v! D; g5 C, B9 ]

9 J0 [0 S5 m  x% Y. Y& y;;if [trade-record-one-len] of myself > 3

/ W: d) Z' m5 Vupdate-neighbor-total
, ?9 X' {1 g; B' _' ~; k. V;;
更新邻居节点的数目,在此进行
; B1 E( r  ~5 S) F" a* {  v. glet i 3
* f5 W7 U7 w8 clet sum-time 0' R/ k1 k- t$ r: j' |9 Z; j2 L
while[i < [trade-record-one-len] of myself]* E- ?# n$ U. ]0 o
[
! @9 I( `' N' _2 Q  S; m9 s- s, x0 hset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
9 u( n+ v! e, I8 h* `set i
& k8 h: Z1 c- G( i + 1)
3 N: S# D- g+ H, a3 Y6 s
]' ^, ?3 ]3 S$ y1 |
let j 33 D7 k8 b: n, w$ a3 o% F' `# p: k
let sum-money 0( b3 c( y( P7 `) @  X9 {
while[j < [trade-record-one-len] of myself]
# A1 P! z7 N4 C/ w' k6 U6 t7 m[
, w* A4 }0 K9 k: @3 v  t, Mset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
% ]4 p4 A1 L, Y! pset j
1 Y2 F# L, z' z. u0 q1 b* M: I( j + 1)
  G; I0 D2 e% J) V
]
/ y- B- l9 X! R' \let k 3
" N3 Y% ]4 L- ^0 L* ?! Ilet power 0
4 G! e! V" d3 flet local 01 i9 `- C, P# @5 \+ m& g. ]! S! M+ o
while [k <[trade-record-one-len] of myself]" ]# ]( I( t7 x, b( {/ d
[
4 N: y. F" R" }8 Y4 Kset 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)
! h; N: X) O) V- Jset k (k + 1)
) ~6 q; G1 E" }1 r' J( M7 T2 Y; Z]
5 K; f/ N( M5 ], `( k% G7 k7 e/ m0 fset [local-reputation] of myself (local), D- N3 x) b) E: |5 z- P  Y6 D
end" w/ a6 H; @& M# j, l2 A

6 V$ d0 q: @8 _5 p$ j- H, }% j4 c0 zto update-neighbor-total
! k. w0 t/ e& j: n7 T$ M
8 ~5 i$ @* @9 J; ?" h1 B5 [if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]' G. ^! ]% |  K, e: O& u

) \2 E! v7 g. \' d% G# y

3 z( H4 w$ K- Lend
" k+ H) z! S! |) q9 h8 P. b: m- X" h0 M$ ^; n7 [# l4 m
to update-credibility-ijl ; P* Q- N& K% b% i; Y' z2 d7 D9 ]. _

7 Z4 q$ E. v: {9 A. K% ^;;
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。
+ x2 Q# }* i% Y$ K" P- m: ]$ q' D1 Klet l 0  V# x  A  ]1 v. _, k$ e
while[ l < people ]& Z- {6 Y6 q  ]# ^9 y
;;
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# Y, d1 k' P- v: ~# D
[
( a( u3 v0 d6 m7 R: J1 k  Elet trade-record-one-j-l-len length item l ([trade-record-all] of customer)6 Z  }6 S. h; y$ u$ ^
if (trade-record-one-j-l-len > 3)
, s5 j, [0 T8 U% O[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ltrade-record-one3 I  ?" W* }6 x0 o! T
let i 3) [# i8 u' h/ T$ D3 q
let sum-time 0& Y, e/ N( G% Y7 a
while[i < trade-record-one-len]
4 m0 V* s# X: D% ?" r6 b% j: g[
4 W/ [6 u) d' n$ f7 z: h% `set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
* ^5 U; T/ l7 ^2 u4 Pset i
* O6 F! `) ?3 ~: [- I4 {( i + 1)
9 x& ]9 \+ I+ l) [: t
]
; t3 c8 B2 l* X1 O4 T, `' C. C. Blet credibility-i-j-l 02 t5 x4 Q, I  s5 h% l
;;i
评价(jjl的评价)
( Y, j' @8 w. Plet j 3
6 h! y' N, \1 f, \/ l% ?let k 4
  B$ F% n9 j# q: ^4 o0 mwhile[j < trade-record-one-len]/ W# ~- ~( {* u( j7 g
[5 u) P& O+ W9 P# D; X
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ik次给l评价的这一时刻,l相对于j的局部声誉* T$ a: a' {! x% y* U
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)$ r5 x, {. m1 t! |5 k
set j  v  X) G# `9 `; X
( j + 1)

" N* J( J* y! O6 O# `]5 }2 F( _6 ?# N5 K$ o4 b
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 ))
1 l; z& R- k  g( q7 d- d+ u( o! }; l: Q; P; ?  X5 ^( W9 u4 ]( @
% p; P7 T7 v4 ?1 y
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
9 d0 T# g3 G3 X- l3 w4 W, r, z* R;;
及时更新il的评价质量的评价: d& H- z3 J0 w% a. [0 C
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
& ?4 j" Z+ u4 \( h4 s# {set l (l + 1)
; o# G" G" O7 h7 X& g+ `) w7 O]
8 G( |$ v" U# u& R& }6 ?+ a: eend
0 `- l* z; W2 L" z( {0 V' G+ Z. U
0 i8 {9 l5 c* W2 `* pto update-credibility-list- h  e* n) V3 S. [$ w) p1 `
let i 0& ?* I: v: `0 l# |
while[i < people]5 i* X* g4 ^0 ~; p' B) L" P! Y' d6 t
[
9 ^$ [: ]' n$ r2 W/ I! X8 qlet j 0
5 l7 U! i" h, o# {let note 0
: k& J( x: e( V6 dlet k 0
& r; ]7 B- N0 [' w( v2 G% X+ W;;
计作出过评价的邻居节点的数目0 ~$ I+ k* }' ?* V# i
while[j < people]+ Y: O; Z4 m$ a2 b) t& J* a0 \
[
9 p; }& N- d1 qif (item j( [credibility] of turtle (i + 1)) != -1)
9 x# l1 d" N, u2 l;;
判断是否给本turtle的评价质量做出过评价的节点+ m* L4 P! M9 n) @3 l4 r9 O# f0 V/ N
[set note (note + item j ([credibility]of turtle (i + 1)))
1 V8 l: w7 J- E' @) _+ b8 O;;*(exp (-(people - 2)))/(people - 2))]

" T' ~1 ^+ [1 h8 E+ e: J( I3 Yset k (k + 1)0 |" V9 X, E1 ]% I8 y' \1 Y
]
! ~4 y- I' ]6 O* u: q! W  `, aset j (j + 1)7 ]( l* A* S6 b! ^
], S7 ~) o2 w/ S4 G- O
set note (note *(exp (- (1 / k)))/ k)
+ G5 `& [9 w* e4 lset credibility-list (replace-item i credibility-list note)
7 [* |: K0 u; g. a8 Y4 a3 v  fset i (i + 1)
: s$ i5 Z7 C& }# _* W, k/ V4 k]$ R3 x- Q4 g0 U  K" v1 ^) M
end
) x0 i2 c5 j$ U4 W' ]
! s( [% I; n- }3 X* C, [3 X4 l" Xto update-global-reputation-list' C- z! `8 A' P* k$ o. Z
let j 0; B" o$ W2 A0 Y3 J# k) G* p9 e+ i
while[j < people]# U% V) I0 L, |( U# G0 M3 S" W
[! q3 q* ~& h$ r
let new 0  W8 o$ m. T7 W& z
;;
暂存新的一个全局声誉
2 x2 r* Y, t5 C' }let i 0
- J( b6 I6 t5 W6 Flet sum-money 0
% s2 K* \! u) u7 v8 Y6 Elet credibility-money 0
# r% w/ F+ t  A( v4 Z! l3 @! Vwhile [i < people]5 A7 t9 M- l: }3 v& ]
[6 W+ l% j5 P. l9 {0 Z
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
' I0 S9 B- A. zset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))) c; `' p. i/ k0 u6 U
set i (i + 1)' a8 Z! Z# |2 \5 A3 S0 W( g
]
2 a# S1 t7 n( E; `6 B0 Elet k 0
. ~6 Z8 p! x6 w8 Ylet new1 0
" @- O  O) x8 f0 K" D8 bwhile [k < people]- N! X# j  W& \) E7 _) f
[
0 X! p/ r# T$ B0 q0 o( }' s+ U  Sset 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)
% F6 O% }! n+ P; _1 H1 S" I  Kset k (k + 1)/ |  ?& z/ o0 G/ g. H
]
) C* H2 I6 D& m; n) f/ nset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
" [; _$ F; ~" y+ b5 S- Vset global-reputation-list (replace-item j global-reputation-list new)8 |7 A$ U$ @% k4 Z3 D5 ?! T0 V
set j (j + 1)
3 V! M  H5 i, i2 ^3 \]# ~" o- i1 c% \5 t0 g6 g' w
end& Q8 s7 [% \6 Y' ]; E' |, j* M2 E

) c# H: X: s0 @' I/ T/ k; o# ]: f
! ]% \7 b9 _/ u/ x. Z& E! q
to get-color
8 f. Q- I$ q& B
' W2 q' J$ D* N" ]7 `+ Z- ~. w6 Gset color blue
2 u; ?! {2 j! M  g. m* i7 @
end
, Y1 X( H# _+ R3 H, F
0 a' y8 [2 G9 z! lto poll-class
( l, [- g) `, [' k$ d5 d: U1 u/ Kend& r7 |$ ~9 r0 c. N1 I1 U2 M
; c3 r$ N2 |3 K7 d& f& @, f7 z
to setup-plot1
. V7 T1 F5 C) s, ]# A$ I6 j
) D5 g2 v6 D, F; Z: p& Yset-current-plot "Trends-of-Local-reputation"
2 [5 k5 J" U5 p
4 d: c. E- C1 a
set-plot-x-range 0 xmax

5 l# P- e  f# e1 @
2 ^5 P' o; O  X# d; Wset-plot-y-range 0.0 ymax
- y( o% ^- w* B( Z. \2 o  A
end
$ g% |, s# r7 n& t; c$ k" j' h- `
# t; W# e" L; u, N" Q+ v( c& z4 Xto setup-plot2
+ k8 i+ z6 ?8 R- O
# S9 f& ?% |- g2 Bset-current-plot "Trends-of-global-reputation"

/ y; D# B- t3 C7 g; R/ M# b. j# _6 {* n9 s1 M  b: @$ Z0 f, T$ u
set-plot-x-range 0 xmax

6 D: V* H8 W+ C$ a/ C9 o: ~, o& V8 e' ?. v, q
set-plot-y-range 0.0 ymax
8 V) G% T+ O% o+ I3 Z9 g, A" o
end1 Q  [% M4 }# V# a- P: z( W1 X$ }/ x
; X9 ?; Q% P0 M9 \, L* L3 C$ n( M  G
to setup-plot35 l/ l0 d5 v4 ?( [

6 \4 U( Z6 c$ U# e: v" n6 c" t& kset-current-plot "Trends-of-credibility"
7 B9 z( m  c. T
- Z* p6 b2 L  y/ M  n
set-plot-x-range 0 xmax

; W. w8 V) X% ^( `9 U! z
( K- Y! w7 q$ s8 O0 @# fset-plot-y-range 0.0 ymax
# x  w" }' l* i6 F: d' M' N
end
: ]- {4 }) c- Q+ M; K" G8 _$ v: d+ H( i' }
to do-plots% z7 ~% L* k" c/ D+ d
set-current-plot "Trends-of-Local-reputation"% \  P9 P- s  s9 j$ k. q3 k" s
set-current-plot-pen "Honest service"
( k2 |6 D) \$ h7 uend8 b5 Z' Z6 s4 O
# Y. [3 A% l, Z' d$ S
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ]

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发表于 2008-3-19 11:33:07 | 显示全部楼层

有点困难

没想到挺复杂的,我去问问师兄们,不知道你是自己建构的模型还是其它模型的改进,我试了一下好像setup都有问题,别着急啊,呵呵 。
发表于 2008-3-19 11:34:29 | 显示全部楼层

还有啊

发表于 2008-3-19 11:35:59 | 显示全部楼层

还有啊

能不能传nlogo附件上来,一个一个敲太累了,好长的程序啊。
 楼主| 发表于 2008-3-19 12:47:57 | 显示全部楼层
嘻嘻,不好意思啊,现在把附件加上了.$ e$ t. c3 R5 e8 R/ l+ t) c
6 o/ |( w3 k+ s9 P- u; A% w
这是我自己编的,估计有不少错误,对netlogo了解不是很深,请多指教,谢谢!
发表于 2008-3-22 16:55:16 | 显示全部楼层

程序公式

我问了一下,只是从程序角度来分析,是跑不起来的。如果参照你建的模型(公式),可能会有帮助,我的邮箱是wjcpcahu@126.com.方便的话,看看能不能进一步探讨。
发表于 2008-5-19 18:02:44 | 显示全部楼层

运行不了

提示custom无值,这是怎么回事?
发表于 2011-4-10 14:42:01 | 显示全部楼层
好高深
发表于 2011-11-7 11:36:13 | 显示全部楼层
为什么大部分的帖子的交流都止步于2008年,从08年到现在好像已经很长时间没有更新过了啊,为什么呢?
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