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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:8 c' C- m% x( ]& m. N
to do-business
; v0 o/ d$ p  h  }/ A rt random 360
, ?9 B7 D9 v9 M9 i& r- G fd 1" w8 t  r3 g, d; M% O+ m
ifelse(other turtles-here != nobody)[
; N0 }9 y# g, E& u+ }9 d   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.
- z( I. b2 ^+ K- D! w* `3 u   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    " f: x' g" }* u: V* s( r7 z
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer
" y- g8 ]8 L- c) \   set [trade-record-one-len] of self length [trade-record-one] of self
( L: X$ V. l7 a* C9 Z3 V   set trade-record-current( list (timer) (random money-upper-limit))
' q; z* |" d7 S7 A: j
. Y  {, l  N- P0 C1 O6 o9 u5 J问题的提示如下:
) [: C  K$ d' X& }/ T
* v$ C( b* w# {; e9 A% [! y5 l, Rerror while turtle 50 running OF in procedure DO-BUSINESS
; q& d9 J- t3 Z; N5 E, r  called by procedure GO4 z5 Q) L) s) S  P3 Z
OF expected input to be a turtle agentset or turtle but got NOBODY instead.1 Z5 f8 p- a1 ^: J: Y$ F
(halted running of go)3 S4 x$ Z8 u: G& d6 l

, [* s: s. K$ Z" ~; m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~~4 i7 d2 d8 y  T
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
5 U8 _6 w8 b+ @1 P: o& iglobals[, e/ ^1 y& Q4 S& m* S$ f! y
xmax2 p* I/ `* D3 L# Q& ^
ymax
' d  L" `0 H6 lglobal-reputation-list
$ C' r( U; X: ?! l+ I2 V5 r+ ?7 M5 V2 @- g3 z1 f
;;
每一个turtle的全局声誉都存在此LIST: G3 h' Q: _6 d5 @8 z% y+ X6 e: m* C
credibility-list) r$ |6 e# K4 M1 P" m: `2 b
;;
每一个turtle的评价可信度2 X8 B) u5 L3 |9 c4 s/ H, u
honest-service  n$ [6 x4 c' O) @6 Y
unhonest-service
3 b$ L# f3 _. C* y9 noscillation  p1 e% ]5 [$ f0 d5 W$ [/ f+ Q
rand-dynamic
- p  a: E7 y. L  K; q0 m" D]
! W5 a0 D! Q6 n7 i) t1 P, c+ B7 N3 E
' \- y- t: X% p6 G+ C; E- Qturtles-own[: v; Y; t. J) g% x
trade-record-all1 p- t9 A' s: g0 U) s6 ^! _
;;a list of lists,
trade-record-one组成
1 ]: \8 r9 S" }trade-record-one4 h! x5 i9 p8 p1 l) O/ a
;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录
6 Y* a# C; k: r4 q5 y, V, y3 c& t. @: i7 U8 C7 D" d
;;[
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]]" V9 K$ l$ j; j. A: E2 _
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]5 t* v7 p: F3 N% W  K- L2 I
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list0 W8 x) F4 @- ]4 `  [# ]6 ^; D# }
neighbor-total
+ q% a# v# ]% n4 W+ U  a4 i) T;;
记录该turtle的邻居节点的数目4 i7 q) Y. v4 E/ ]( f
trade-time- k2 Q' I+ ~2 D3 G6 m+ L. {1 |/ c6 y
;;
当前发生交易的turtle的交易时间
* C/ V3 g' i: K8 E2 Yappraise-give
' u: U8 P. ^9 q9 |- W;;
当前发生交易时给出的评价
% Y0 s5 @! S/ L3 vappraise-receive1 I; h( ~% A: v7 p  O7 ~
;;
当前发生交易时收到的评价  \% H- P9 ^9 M0 `
appraise-time
5 I  Z1 h$ e; h, a8 y2 N& I, h1 T;;
当前发生交易时的评价时间
; E! B5 c" |. d1 w2 \0 mlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
% S: c9 _0 R* O% U1 Etrade-times-total5 z7 l* M3 h; o$ C" c( o  o
;;
与当前turtle的交易总次数
; Z( q6 h. D. Z& O) btrade-money-total! f: j0 O5 j2 K4 u5 P
;;
与当前turtle的交易总金额! |' I1 [. p9 M" H7 o/ T
local-reputation
$ [, S8 {$ o3 x# Fglobal-reputation
* C% w' v+ a: H+ Dcredibility
' ^' b% e  I! `% u+ H, D: u1 W9 }1 r;;
评价可信度,每次交易后都需要更新! g3 D2 _! _$ n( m# a1 W8 E
credibility-all
; x/ j0 H1 x' g: P% x- ?* l;;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
4 Z. W7 j/ T; S0 p; g
; L( g) R# B: @$ c1 ]7 l& M$ M;;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
; H$ q- o8 Y8 {3 r, ncredibility-one& x/ V2 v1 c2 e9 Y3 ~
;;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
" A: H" Q* ]: R6 u( ^7 m1 \global-proportion7 n# U2 R9 \3 i3 ]5 u
customer  D/ Z* H4 P/ k/ X6 g
customer-no/ o% U* K6 x3 ?9 `
trust-ok
" i! H5 v0 V, t- `7 ]trade-record-one-len;;trade-record-one的长度
, ?4 F- u) k9 I* a3 e8 I" g]
0 u/ x/ W3 [* p5 w, i$ ?# K( c9 ]- Y7 L: x1 q
;;setup procedure& K9 Z( z* t" V+ J' W
# e+ x# z2 B8 ^6 \2 M% `5 U7 h/ S$ v
to setup
! E6 f+ B' Y5 V% ~9 u: h8 _
3 J3 r- Z4 M5 U% Zca
( r0 r- E0 \1 z! r9 K: i5 X

* B9 \4 J& s8 ~4 E3 Cinitialize-settings
' t6 j( x- @. z# B" m
7 R8 S* @& e: B/ K- y
crt people [setup-turtles]
" s- M9 {2 H1 g  ], j

3 S# |2 x% g6 z! ureset-timer
6 ^* e' k* m4 p' F& [3 v5 j

5 W, |, q  P' S/ n5 X2 hpoll-class

" \* i2 k0 f  @; T1 ?# O
$ u5 ~/ N  j% [- m' J: osetup-plots
2 Z  w" r! `% T: N

% K7 X2 \" a2 }5 R- V8 c3 ^" c0 ldo-plots
, U# v  I; }5 P# Z  y$ m. J
end
) h* |6 z( i( b. W! I$ |# ?9 D$ `% m$ H$ G
to initialize-settings
: d# b: H, x% o8 l3 g, y2 r' t# |0 ^* P, E
set global-reputation-list []

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set credibility-list n-values people [0.5]
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* B9 F" K5 M$ ], I" v+ t4 N' Rset honest-service 0
* p( A1 X1 Z. w% l6 w

3 S( V* |5 j# U" ]4 uset unhonest-service 0

  a! [4 c5 k" e0 b" m  r2 W9 q# `- V5 D* L4 c0 N8 c3 K& J0 ~6 c" L
set oscillation 0
& Y! I7 l) Q& P* Z( h; x( H$ H

+ _% n$ ?# X& f. pset rand-dynamic 0
0 U9 _# m# `* [) W9 E& ]/ E
end
9 ~& b8 H$ l5 i& R6 ~
. P" u2 R  Q! J7 M5 y( a1 _: Tto setup-turtles & S2 ]' `6 w: z7 Y$ V+ `
set shape "person"
- v/ l4 i" V- @" r0 D1 wsetxy random-xcor random-ycor
5 T6 B9 k3 }& B; Z! y$ B2 ^8 Xset trade-record-one []4 }% n: j, q( z2 W5 J0 ^, |* M9 D
  V/ B2 G4 x0 M4 z' q) M
set trade-record-all n-values people [(list (? + 1) 0 0)]
! ^: `& x% Z( e2 g

% G1 M  L: m) v* q+ S0 sset trade-record-current []0 f: h' |6 z" x" `  d. N/ P: Q8 \
set credibility-receive []5 U: _; T  ^# e
set local-reputation 0.5
  p. O8 ~& Q( j. o% I6 j6 nset neighbor-total 02 u3 J/ ^5 m% y0 a1 Y2 `8 Z
set trade-times-total 0
5 c8 e" p- w! u& C# _set trade-money-total 0' ]5 X; N2 Q' H1 U: r( K6 ]
set customer nobody
# h$ j  u7 E- R: I5 j3 ~set credibility-all n-values people [creat-credibility]
9 J7 b' F' G) g$ |! a% N6 Z% s! Fset credibility n-values people [-1]
1 W, B8 |5 |* W8 a' wget-color3 C* A  G% K; ~$ P. H4 u2 T
3 k0 [# d5 i6 t. A" S
end5 \5 B% Y% L  r8 V
" w3 @9 n$ Z1 Z/ j: \0 y! W! a, @
to-report creat-credibility1 o- Z7 j1 J7 `! G. a/ B4 k; H
report n-values people [0.5]
4 P6 C" V1 H. `end/ e& _2 ~& m' Y- }
, o0 v1 V9 s% V) l* s; R3 F
to setup-plots
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4 ^, m+ n( P7 h: o% U# P* O- k' Xset xmax 30

& @' H9 |7 Z6 f( q6 ?7 j" k, H0 N5 v8 q( J6 l6 H' [, t# g
set ymax 1.0

6 H* t$ r: c( Q0 Q: m+ R
" t" w. }* O2 z, {8 g' Jclear-all-plots
  t0 G# [. c3 s0 {
, a6 [9 w% U& \  h# u0 |& l# k5 W
setup-plot1
6 X. Q9 d6 r: _' {" o

* y: Z) F, Q! k% s$ p# t% R0 Esetup-plot2

) M9 D# ~& U1 V* h3 Q7 t
" N+ N  u" u! P$ y2 q  M& vsetup-plot3
6 }+ c% Y1 F1 N0 z4 S& w1 g
end
( ~) U1 i$ o# y* d
8 ^% ~9 D8 n1 o4 Y;;run time procedures
5 d4 o# M- Q" J! L+ O3 I! `
5 P; s8 c- W4 b# Hto go
0 B# I/ |+ q# l3 u. D& l  L- _" ?0 ~& ?9 o$ Y; e2 V; ^( T
ask turtles [do-business]
% N3 Y; D! e3 h+ G7 L; \
end  l  z; w9 ]$ l2 N8 o) \7 b; x! X" T

- U" g0 Q5 m9 t: F+ H% {; Y: Zto do-business
/ Z3 T4 v; C. ~6 i* }( y( f
" P/ k9 a; C% u

3 a! W8 ]" K0 w4 lrt random 360
2 r: V' u; I  `1 G+ I6 g# @
( F/ x! e, j6 Y2 g
fd 1
# `8 @5 S9 M% P, v/ H
- r6 L; \7 J9 Q5 _
ifelse(other turtles-here != nobody)[

5 l0 i2 H+ x. I
) f5 K5 \7 q/ L5 Xset customer one-of other turtles-here

1 J! z/ \# I- G; C4 e% y5 y, B6 {" O- k9 Y" Y
;; set [customer] of customer myself
+ S  k; {' M6 Y& F: k

% d7 x1 X2 z9 Z% H6 d2 E- t: \2 pset [trade-record-one] of self item (([who] of customer) - 1)7 r3 H4 a1 d$ s/ A" q9 x
[trade-record-all]of self
. v' q4 n! g4 P) o! Y; I;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self

" q9 R$ D) z9 }' J
6 `) I. G6 T% W, _set [trade-record-one] of customer item (([who] of self) - 1)2 K% o; j; p/ v2 z0 p2 u% e# I% r
[trade-record-all]of customer

/ s' R! m0 X8 e3 m3 Q, x5 x
4 f# K1 p3 N0 }# M# X1 `set [trade-record-one-len] of self length [trade-record-one] of self

# N- m/ [3 H) F% w# [/ _, D4 h7 y" U% j; \+ c( f" T
set trade-record-current( list (timer) (random money-upper-limit))

+ ?, j  r+ m1 I
/ B8 e. c# N. j2 h) I0 J  {ask self [do-trust]
1 ^4 M/ q# z+ b: U+ N;;
先求ij的信任度  n) r/ x/ c( G  T
* K' _! N3 q4 W3 c' w
if ([trust-ok] of self): `) @( h$ |. y1 ?3 n# o
;;
根据ij的信任度来决定是否与j进行交易[* i4 {  C1 ^4 k7 Q) q
ask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself' f/ k1 s! ^7 j6 H

- c9 c# S5 n, U8 [[

! T; i9 R3 L2 F4 l/ Q( I8 c% K( w9 c
" E0 o* z$ ?5 ~2 Y( V; |$ Cdo-trade

' v& j0 V# b+ n  {+ \5 u. g1 ]% _4 u9 S+ A* n9 V
update-credibility-ijl

/ G+ _* j' t% }) I8 F& q) O# U2 g/ F; o: C4 x2 Z
update-credibility-list
, v  t' n0 {9 }8 J( R6 b
3 L4 }: b/ D3 R. y

4 ?, m: l# I; a2 @0 T: bupdate-global-reputation-list
3 ~' Z% {/ o6 n6 L
4 k1 f, B: D" \$ l4 f
poll-class
! \: w5 P7 v9 T( y3 {& r) K* r) ]

& i9 U( q; ~' ?get-color
, t" e3 H2 K6 J$ L0 g
) M; S' j+ o7 T+ g* {
]]2 s& |2 |  ?* W0 g

3 E8 v: m* F: Z;;
如果所得的信任度满足条件,则进行交易
9 K) e# T6 r, I& T5 f
2 r8 ?4 t( \# }& O0 r$ N1 @[

7 A7 S5 u4 T4 I1 k& H# O7 r- A; q( I) K( H3 z
rt random 360

7 p' Z( o+ @# Z. o4 Z! \5 |
9 J+ |: ?+ Z- m& m4 }' @. Afd 1

# r$ {* Y+ s% }' b" Y
+ \' @, [7 G) c$ I0 V4 b; y" Y]

1 a: n- n0 Y0 v" c
7 C" _! U  w& Q5 Mend
% t6 e' M1 C6 q( r8 `, r
( Q( j. y! t8 W' t
to do-trust ' i" X3 _! P6 w, a& j, B
set trust-ok False
0 U% F4 U9 Y( i0 o/ U
2 Z4 ]9 H, s& \0 i: G9 u$ Y: p

- W4 }3 z1 K3 H; c! i: Zlet max-trade-times 0, ?- z! k% J2 J3 A8 n* A
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]8 _/ R" p# O- R  Y3 W) }# }; O7 h
let max-trade-money 0) X# z- L4 M3 h( E, _
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]. r+ u4 j( p8 x" @% x- n
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
) D. R+ e$ [8 k- R: L0 Y- b/ Y% U8 v( G; K; S, r9 P# Q
) a" G! D. S# B3 e* t4 h+ O7 Q
get-global-proportion' j0 S& E2 ^+ |* C  N
let trust-value2 `( J! e: |( R  `
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)

# Q7 w  o- f; g, ^if(trust-value > trade-trust-value)
! Y# t- ?6 ^; J[set trust-ok true]8 `4 p  P; e3 o* y1 `. D
end3 Q3 d/ C# B- v; c. _! |- N( ?* \
# X$ o( H4 P4 T+ x8 H' |
to get-global-proportion
1 {- R6 I9 D: q% {  ]6 n9 J: wifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
' ?' @" {5 e) Y) f; l[set global-proportion 0]
6 v7 V" L; X8 h4 ?[let i 0# @* S& o" p' E" o* Q$ ~
let sum-money 0. L# U* U( V+ L/ \- k' n
while[ i < people]; D% R3 L" K0 S( Q' y2 r1 R
[
6 F" f4 F& o5 V& v2 E% G  Q. nif( length (item i
) R+ C8 ?  ?$ V8 t8 s[trade-record-all] of customer) > 3 )

8 O- X: n' U) a/ _; U[2 e3 i; B. \" Z! y, j" n# t
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
. j/ K6 f: ~* N" P: M8 y]
/ S7 q! I/ L  ]1 {9 ~]! E' u6 Y3 n) I9 |: Z3 A) ]
let j 0
5 w  G- I$ _7 {  s. R/ ~) Flet note 07 G1 q' K; ]/ a* P4 t" O, P
while[ j < people]
! h$ Z1 q9 A  `0 v  t+ {( I% d2 H[
9 E; Y  f+ u, r. v1 Lif( length (item i) ^9 ?4 v- g; ]
[trade-record-all] of customer) > 3 )
5 ~9 o6 t. z. l% a. h! v
[$ [6 l5 P& m! z" V  x
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
* b& C+ W  h; ~# P% I[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]6 L* Z0 S6 A! k! B  G% r9 j* a' _
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
8 K& n' z4 r8 v]
  C! h; C9 k. ^6 s8 K" Z3 Y]
1 e1 B0 Z2 L2 D2 I" o7 kset global-proportion note
1 I  y& ^! b/ {, O* |]5 U3 m7 P! F4 R
end' C2 U4 Q; ?: A* I
: h2 @( [7 [% g4 f1 e5 ^
to do-trade4 t2 C8 V, A$ B0 P' ?6 h3 \
;;
这个过程实际上是给双方作出评价的过程4 i9 U( f% s5 p: {/ W
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价( z6 l" U  O5 T& H0 s
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价# s0 O9 o9 [0 e; l8 O) Q! M, K
set trade-record-current lput(timer) trade-record-current6 H. q  P. @+ l1 E- W9 R- y
;;
评价时间" \. u7 H# D  _, }1 `8 Z/ z
ask myself [
% r9 Y  M6 r4 Pupdate-local-reputation
; d6 G0 r2 L3 ?( K/ p( c2 b4 g) Lset trade-record-current lput([local-reputation] of myself) trade-record-current! S$ l& H( Y$ i& _
]
; Z2 X$ }8 h; D+ Eset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
8 D3 w0 J% w! e0 Z;;
将此次交易的记录加入到trade-record-one
; F. q+ |# Z  Xset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
) f8 i- d& K& O, @  Olet note (item 2 trade-record-current )
2 T- b# L5 o' v4 Fset trade-record-current
; e) {  |4 i4 i2 j& t. g- a(replace-item 2 trade-record-current (item 3 trade-record-current))
, C0 l9 ]- I! O( K
set trade-record-current
% P  C" W, t# B& S2 a' \(replace-item 3 trade-record-current note)% x/ T  l6 X1 w0 a/ D9 `0 [3 w3 s
9 L* |1 f$ y) o3 e4 j( R
. k7 d! d& r1 d9 J, i
ask customer [
$ o) r) T8 X- @. Q9 h4 Mupdate-local-reputation: i3 Z8 f; Y) T8 I
set trade-record-current6 l: q2 b1 G/ i3 c" z/ K) z
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))

; A$ O- [/ b$ Y$ P0 G]
" [6 B: u7 O: t) L* Q! c
( g  _" n3 S) t0 M, L" u% z
& Q. P8 m# S1 M1 C( s0 G) }4 P
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer1 }' A# o) _7 I* s
; A- Y; }0 j: ?
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))3 {( s& u7 l' ~% q  z6 T
;;
将此次交易的记录加入到customertrade-record-all
$ r5 M4 J' f- l, T& o7 Dend+ [4 t$ h% W  T$ H
: K; ^) ]6 v% M* X
to update-local-reputation
% X9 j2 Y9 ?: t8 j# \7 X0 E. W; L  ^set [trade-record-one-len] of myself length [trade-record-one] of myself
5 C9 X( R8 U0 F! b6 T$ E: h
! r+ A; \$ `3 L$ i9 W( w( U
+ ~/ v8 ?, r# f4 P8 N1 G;;if [trade-record-one-len] of myself > 3
' P* ^3 g0 {! H2 K
update-neighbor-total
9 A& R4 |# o% H/ d. X;;
更新邻居节点的数目,在此进行
. Q2 k$ ~: h0 c8 a) L5 Blet i 3) I% b( i8 N$ K3 G4 }, @% c
let sum-time 0
9 j( \2 ?; `  g+ y0 f) bwhile[i < [trade-record-one-len] of myself]* Z+ t! U! w( d) l) U8 h
[. |4 g5 I8 P+ A1 T( S- ~- W, S
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )/ p, s& B, @  r0 t4 R) d' r& a/ W
set i
: W1 b4 c! V* d, O: o! E1 E( i + 1)

* K( K3 s$ S8 h0 t) x]
4 G# k! W6 o3 y+ D, ?0 F7 g' xlet j 3
- d; f  V1 p0 m4 Llet sum-money 0
3 g: W8 A2 L2 \  Cwhile[j < [trade-record-one-len] of myself]4 Z% Q$ J4 S" C% B# u9 Y* o
[
1 E( p& A1 |% N- k) }. r% gset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)8 W$ C+ y7 p  ^, Z
set j( U4 e* M9 V' }8 Q
( j + 1)

2 \! E0 I. t% l]
9 n9 B4 a( i/ h- @/ u. p" i- B3 ~/ plet k 3
  P: n/ }) A% [1 blet power 0
) o4 {& b8 `! Clet local 02 O1 k) f! P  }( d$ g0 B
while [k <[trade-record-one-len] of myself]
- D! h  F+ P9 @0 i! O8 x[  [7 l* P# p1 Q- @
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)   F3 A; ]0 u1 c7 u0 B* P7 u
set k (k + 1)
2 y) U) e/ \, ]7 P3 k: E6 m]
* H; e& M1 [" h$ J( F' n! j# Iset [local-reputation] of myself (local)
# r: l# Z) |, C/ u8 @0 l: ^end
( B- p9 U' J9 H- K1 {9 }; H8 p. @# q$ Q6 m
to update-neighbor-total
6 Y; f5 [' R4 X: }5 F8 o3 v# I, N, Q
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]  _9 a# Z3 W5 A3 u! h% n" A

) [1 H* h% @* Z+ H" ?1 b
8 b( b2 |# U3 f4 Q( J3 z
end- ~9 ~* d& j, _$ {6 ^+ t8 e

* h( `) ~5 L2 m4 J4 n5 Fto update-credibility-ijl
. T+ R& r+ ~) Q8 b+ ~9 ~6 e6 O9 F' U8 ?4 K) @* l5 h. h' R2 e
;;
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。$ F3 L* I" {  h7 f2 P3 I. m
let l 0
& S5 E# p  R: u7 b; Vwhile[ l < people ]8 j( [0 [9 `6 s9 L1 r
;;
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0 c  C) T, d/ B2 j2 E
[1 p, g9 z$ M3 w5 _
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
  V3 q2 i2 o: Uif (trade-record-one-j-l-len > 3); |3 _4 n( i7 ^9 ~
[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-one
/ V7 Y% [4 i7 T0 D( ]2 ~& ?( Glet i 3
7 A# `( d& R% c; f6 Elet sum-time 0
5 C% V& B; @% j! ~$ }, jwhile[i < trade-record-one-len]/ Q/ v2 I$ j2 B, t) b
[
0 r% [) g0 H9 r1 ]set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )) f* D8 A& l+ B/ G
set i3 A7 R/ y) w) [5 f# K
( i + 1)
+ K7 m# B8 p7 L6 z2 D; Q
]! }) l8 d3 R6 t: y5 Y
let credibility-i-j-l 0
' K6 E- z5 l" `+ K2 y1 G;;i
评价(jjl的评价)
  y  o7 D: [6 p9 j4 Alet j 31 @2 q; O) @0 h. l0 n. ]7 V7 u: E
let k 4" T% a* \0 a& Y& G; P2 E$ Z
while[j < trade-record-one-len]- ~, l3 t! Z4 D+ G" B
[% z/ E! b1 b, z/ @2 Q4 ^6 ]1 O9 f
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
2 M0 o& u2 L, d+ [, _) xset 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)- U% c! U  n& L' a0 j+ w, f' o' s8 O
set j: G" o/ d. T. D4 G* r+ _; Z
( j + 1)
. Z& l8 o) W# G5 a3 \- O
]& w& S& M0 W, }, Q
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 ))
: E& |+ G0 I8 s0 ~+ b% e) L$ v5 ~6 {: ]6 P
7 B! |4 s9 N& r/ z! L. D
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))1 O2 `* I. Z! }5 r2 J7 L; [* B$ K( X
;;
及时更新il的评价质量的评价
) @2 z6 {$ K1 Yset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
9 P. l+ B4 t( ?4 {set l (l + 1)
. ~9 r0 Q# s( }2 j0 X]0 A6 y9 j2 N/ Z. \3 @! m" {
end
- ~5 G* [' q; o4 R) U1 f$ w/ s; O' o# O- V7 O3 i
to update-credibility-list
! \" S6 B7 @9 k3 M% j/ M# blet i 0& w3 e6 P+ C. _( c2 M1 m
while[i < people]6 j6 E2 z3 A  T- p+ }* M
[
& D& w6 k, h( N! `, l; flet j 0
6 M& w1 C- X9 b5 \" Z3 llet note 0* E* {) ]$ D* ^# F2 K
let k 0! H3 b& r) L( w2 I: |
;;
计作出过评价的邻居节点的数目
4 c( _+ _, Y; g3 p7 [while[j < people]
/ R3 w1 B" ?/ L* T1 X* f, \0 s[
: A* Z& y# h& p  U  }" E" V' Jif (item j( [credibility] of turtle (i + 1)) != -1)
' j" ?  G2 l( o, e8 A;;
判断是否给本turtle的评价质量做出过评价的节点
, ]& o9 n  J2 K/ n; l, N8 a1 i[set note (note + item j ([credibility]of turtle (i + 1)))
  R5 O3 c. D, M;;*(exp (-(people - 2)))/(people - 2))]

8 g# P7 d$ ]0 ^% Q# fset k (k + 1)
4 J, T* n+ S" x# ~! N]$ D' P9 W3 a6 Q$ i; W
set j (j + 1)
# a- x* C3 J9 ~6 S, y5 j$ K  h]" ^! o( M( w7 X
set note (note *(exp (- (1 / k)))/ k)
8 q+ g2 f0 v. l* \* U+ f# tset credibility-list (replace-item i credibility-list note)
- c6 m9 p5 |) e. u7 Zset i (i + 1)
" [: q( w" q1 h]) I8 H! k! G) g0 W: y8 F
end
4 I& a" |  A2 y0 g! F$ |! i8 n+ e
7 e- m3 D' P3 }/ v9 Ato update-global-reputation-list( B; h$ H+ X: |' i
let j 06 h& g6 V* j) c
while[j < people]
2 ~3 z' a5 Q+ s: J- T[
6 X) [: D* L( j0 Mlet new 0; P/ S0 F1 Q, t8 F% D: y3 p% T
;;
暂存新的一个全局声誉, }0 K2 E: \( Q
let i 0
' h& y+ |5 _+ o3 M! P' I# ~+ Ilet sum-money 0
" f) L# ]) g& _) I1 f+ ~let credibility-money 0  u; H- }- Q, [" {) `
while [i < people]& k+ _% q9 x+ Z2 U
[2 r( w* b3 _% ~2 p; k' Z) ^
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
% e3 U* k# A0 E* Rset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
/ D4 g) K# X8 ]! I) L6 `7 bset i (i + 1)
& K2 c3 y& [0 z/ N5 B! M]- p$ `" m/ f) n1 ]/ A
let k 0
5 c: e7 h9 m6 `let new1 0
+ ~0 i* B! z# J1 Jwhile [k < people]
  c/ c/ [$ b9 j; L* _! d[! ^& @& h- N3 F8 W
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)  r( R) Z  w, Y& f
set k (k + 1)
" o& [% d8 o9 z7 @) w; K]: m$ Q3 V2 D/ {" d8 \' b$ X6 k) o; X8 c- Z
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) & L4 I* M9 B7 L' f1 F2 c
set global-reputation-list (replace-item j global-reputation-list new); Y5 i; a7 ]5 C/ C- L4 ?& N, M
set j (j + 1)) M: [7 k6 O! K; h4 n0 C# l* p
]6 l, e7 J0 F& Q8 T- W+ b
end
' ~6 f2 @9 u: Q3 p/ t" z/ j
& V) B; [- ?# B; f# _
1 h% g' W( u( G( }6 `+ ?
) w7 Q3 P0 O" g! oto get-color
. n- G# o( R- ~. Z
* ^7 P! o' g1 jset color blue

$ {4 ^. J, `5 w& xend% t" N/ x: P; l0 G

- g4 t; {, d4 Z( E% V& Y; `to poll-class
+ ]. |$ x9 [/ z0 Send- i! n( }: Y# B

& }( F- s/ p* o' bto setup-plot13 W6 P( Q' @" W$ T+ x9 _* b1 d
- M7 Y- x; C6 s# g' X5 a
set-current-plot "Trends-of-Local-reputation"

7 {5 R. M6 x' X" [9 s8 Q! X5 y
/ N8 h2 X: G) l: F0 A, j; Eset-plot-x-range 0 xmax
4 C) m0 ~8 L+ {- b. O+ e! l! R

# q& U4 q0 {/ i2 p" f, n/ i* Q. Cset-plot-y-range 0.0 ymax

. B! ^& X$ u% Vend7 O& {2 J( ~; W5 C" r) `3 l2 a
& r. p4 [/ `# M0 n9 X; T
to setup-plot2. S7 \2 D6 D2 ?" R/ u$ v

! w. c( C/ O+ t) g2 n9 s+ m( T+ tset-current-plot "Trends-of-global-reputation"

6 I) b6 r6 ?4 h. u! H7 j
/ [9 [' y( s$ Q$ i) L2 b2 cset-plot-x-range 0 xmax
! `9 i5 o- \4 ]" I: g' F

, t: i! q1 i7 M" y) L0 vset-plot-y-range 0.0 ymax

6 P9 `  w3 F3 V0 n) z. s" E+ W9 Aend
/ Y* s, d' ]# j
) K* ?. u0 h# ~2 @( y" f1 ]9 sto setup-plot3  B2 [* F2 A( J) R* n  @1 q0 u1 }
) y1 R' _8 O/ O* n. ]
set-current-plot "Trends-of-credibility"
& H4 ~& K' b8 G- a* g
5 s7 ]' g' T! t- U% P1 n3 y
set-plot-x-range 0 xmax

6 A0 Y3 h) @, e
# `* O: j% @9 g! {+ rset-plot-y-range 0.0 ymax

0 G# S3 r: }2 Pend; e" U- t$ n0 Y! Y

( K  s8 A' y+ q: K3 Q0 h4 Rto do-plots
0 M9 e- y& z8 E% A  \set-current-plot "Trends-of-Local-reputation") X8 }4 u& {1 H# Q" A3 l
set-current-plot-pen "Honest service"- K, c/ r* T; \& u# s: H
end2 B. P" ~- S2 R! _( [. F1 E  {0 t
  C7 L8 I4 @- G+ D. @
[ 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.% @7 T1 V- h" L7 l7 m" I! b

  l' u7 y+ y5 `8 H" ^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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