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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:
- m5 O0 u: [. v; Tto do-business * g: l5 U& k- \6 L! m
rt random 3602 z) D: B  g. g7 C2 D0 n! _
fd 1. V( z9 M" O3 L9 q: N" d" F0 F2 U6 J
ifelse(other turtles-here != nobody)[
4 M/ _# c0 H  D$ t  `- E/ H  |   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.: D: t# a. I6 m; v% l/ g
   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    / C! P4 c3 I- S/ c4 ]' O: \
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer
& G- o6 ~& [( J* {) N   set [trade-record-one-len] of self length [trade-record-one] of self
% p% F' J* L$ t& j   set trade-record-current( list (timer) (random money-upper-limit))
$ [! u% {; ~$ t; K# q3 l$ w- [
0 B: G' F3 w: J问题的提示如下:3 h, B; F: O% T* e  J

$ m& L( Q( ^9 berror while turtle 50 running OF in procedure DO-BUSINESS5 a! F# S4 {/ I: a$ F
  called by procedure GO% J- d2 `. h! x7 l
OF expected input to be a turtle agentset or turtle but got NOBODY instead.
/ z! W8 d% A# J, u2 v' U
(halted running of go)
4 g+ K4 c( {% V5 ^" z  b' P; s  n7 C" y" n; x
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~~
8 ^+ J/ |- N" c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+ B; H( Q5 u) b5 y. U
globals[/ q) G5 i1 \& l. t
xmax
* _" n; m+ A2 T- w0 Xymax
9 D, Y6 T5 K6 T0 a! y) Tglobal-reputation-list* S! g$ i+ r0 h$ R: U

) J, q  J, r6 b! R7 h;;
每一个turtle的全局声誉都存在此LIST
/ N3 U8 f- A' M+ @credibility-list
. {- a' x+ F' o$ _! e& k) A  };;
每一个turtle的评价可信度8 o% l$ [9 o- |: H& z, Z
honest-service
% {2 D5 l% c! ]3 ounhonest-service
$ I0 e' T  _: _. ^% P9 voscillation
( W6 X( J+ N: h* D# Erand-dynamic
2 m& w5 k: x+ h9 V! z], @0 _# n5 Q$ o) u) B8 B
* [  E; N) v1 C- v! I
turtles-own[
- G8 n& n; T! Q  c; Qtrade-record-all
+ V& f4 `0 B& B4 r;;a list of lists,
trade-record-one组成
3 i; q) j" h/ L% {6 G1 h$ m5 @trade-record-one; f8 T: ~  t- z" }& d8 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
& L: a0 k5 f, h5 T- B0 H6 B( C8 b7 u
;;[
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]]
0 C3 q* A5 I3 l9 M9 b; Y& Vtrade-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]# u# o. t# x( \  c' d
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list8 y# P1 X+ E( Z% z) L% g$ B
neighbor-total0 u" C4 }$ i' I( ]  H
;;
记录该turtle的邻居节点的数目
6 t4 D1 L2 {3 O. @$ gtrade-time% S: B, ^& D# H$ p( O# ?; L  P
;;
当前发生交易的turtle的交易时间" H: U0 O1 ~2 N6 ^+ m! y4 v
appraise-give
% k' A" p' _# w, B( z;;
当前发生交易时给出的评价
9 W+ i- F3 d) rappraise-receive. Q- }5 X. s  C& I$ A+ S' C* T2 X
;;
当前发生交易时收到的评价
& Q8 G! }+ o$ T0 q  ~3 Rappraise-time1 x% _- ?* _9 j# f
;;
当前发生交易时的评价时间
4 z( x, F' V5 Ulocal-reputation-now;;此次交易后相对于对方turtle的局部声誉- q- m) \0 z& Q! U
trade-times-total
/ }+ N9 x8 O* ^;;
与当前turtle的交易总次数
2 B, |% T& V0 X) e* b2 R9 Gtrade-money-total, P! B  g0 t% n+ T& T# N
;;
与当前turtle的交易总金额. S! p* p2 b% M! ]3 k0 N' y
local-reputation; e/ v! c7 s& |' I2 v9 Q# R
global-reputation
: B3 F2 U3 \( q7 d/ d# |credibility- J& f; f: U* h4 B6 U  j) R
;;
评价可信度,每次交易后都需要更新
. W5 _: v* L. Acredibility-all
( e& o& m: Z1 j9 k+ c1 X% k. ]6 ^;;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% s! ]! K/ {' [& O; }9 D
6 i7 v; ~8 O- ]0 T
;;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/ {. t- p2 b  K
credibility-one
4 O, o7 B/ w/ D* ?. X+ y. \2 J: W;;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, f" P, K* S+ O$ v8 ?
global-proportion$ h+ P( |7 C$ u, I4 [: g* u
customer
: j% P5 l6 h1 \* [( p5 ycustomer-no
! ]1 {/ D- B& ~trust-ok1 W7 ^. H7 ^$ r- p! V
trade-record-one-len;;trade-record-one的长度0 y: M0 \, `7 S$ C4 D
]8 K" k8 B7 {5 \! Z
+ w% G! g& ]' ~
;;setup procedure: J' i, |7 U+ y6 ~

4 g; n! s; C$ |1 Lto setup
2 r2 a' `- C" X  I
& c; T6 ^# P) j0 w/ I  Vca

1 J7 h5 }: [0 v, e1 c
; d8 R  L6 t, a# yinitialize-settings

. f# T& B. O4 ^+ Q7 z
0 ?" a/ J* H8 j0 B! I3 Pcrt people [setup-turtles]

: E7 ]  {' s/ s% t! o2 f! K, ?- U% R/ ^7 G! I3 p) Z7 Z6 c  Z
reset-timer
: z8 W; i# S2 Z- n3 I
- v; y3 g1 c6 Z! ~* O
poll-class

$ _3 t- b1 O4 H' k9 \7 j, m% c* I, r
setup-plots

! C( O5 {  e$ ~
' U! Q! f+ K3 N7 Udo-plots

, K: e8 S  T3 Wend+ y& z# \  E# `. A$ B7 d3 t

5 ^; H5 {8 e! U8 Y" M& j/ n- C. Lto initialize-settings
1 o- \; V: i% _, R* a2 J" I
% Q) J, p4 s6 u5 a+ yset global-reputation-list []

* m% O/ m4 S$ D% c
8 E. S& {) I$ D6 }5 ]set credibility-list n-values people [0.5]

2 ~0 Z8 |# w5 ~( p# |
: q$ q) b) N& P& s, D5 x" h0 |set honest-service 0
' j/ u* l" X7 j3 R

8 u1 r1 `4 \1 a5 I. n/ Q3 g; fset unhonest-service 0
  u! E: L+ l2 q/ i2 t
5 h5 ^; ?, {+ b/ A% X' W
set oscillation 0
( Z" f2 d  \7 ]# I
$ a) ~! g7 A3 f+ Q( {& y, v5 |* {
set rand-dynamic 0

5 z" K1 B: T+ \# ~) ]end
8 l$ [3 M1 S) N6 X7 j; J' S% u4 V* i1 y5 o6 ], S) w
to setup-turtles
5 A, l: r7 j/ b) F3 P4 Sset shape "person", q6 y, a. r& A
setxy random-xcor random-ycor
) ~* s1 B4 s- ~set trade-record-one []6 g: M/ ]6 O4 v+ i# Y3 H: n

5 l- y& _$ d/ D! s# ^set trade-record-all n-values people [(list (? + 1) 0 0)]   N( j: ?& y9 H5 `
) M1 ?4 Y: V" i4 L
set trade-record-current []0 E7 E3 l/ }2 W7 P- A7 s' d5 k1 K
set credibility-receive []( W- w/ s+ y- R
set local-reputation 0.5
+ F* E  @' A" a5 b: u2 Fset neighbor-total 0
' @: l5 e4 R! }/ N5 [' dset trade-times-total 0! {" `0 e: Y3 O1 v
set trade-money-total 0
: ]4 ]3 Y  G8 s" ^set customer nobody- O8 f, a! H# k
set credibility-all n-values people [creat-credibility]
- D1 J& U3 T* y+ W& o4 fset credibility n-values people [-1]* K6 ~3 Z& G5 H. I3 e+ H
get-color, w  o# A- X( _2 A8 x

7 M5 C$ \6 o$ ]" A* p" zend. B+ U7 @$ U( t

% P" Q: M  z8 ito-report creat-credibility; d" T' o7 W4 }4 A, O  C
report n-values people [0.5]
/ y( T, G' x2 l% p( m0 ~, Uend
$ y" R2 c; F  Y6 f; x
# D; d1 r0 ^: X& N7 pto setup-plots
4 _! ^9 U: B" U" v7 B% Y' m8 b
2 ]4 A5 Y0 n) e: @% D: ]1 @set xmax 30
  F  V+ O1 @( `
# t8 X" E2 _  ~) \* m6 _8 t
set ymax 1.0

( J/ i% G7 ]4 f; i7 x- l
. l  a8 b% A0 ?# }clear-all-plots

! C7 D( w8 u" O! G$ f8 `9 t( o7 N$ K( _( v" l* \7 T$ O
setup-plot1
& I& Q* d. n" D- u. R- j3 k
9 K& F8 i1 j: ~$ I
setup-plot2

* O+ m. c/ P/ X- N' j8 U! u. F& v$ J; p# i1 |% ?: T1 b
setup-plot3
" l2 _  ^. L' g8 O7 i1 \+ R& h
end
/ B( `/ y, h2 Q
+ X1 d( X+ U4 o5 S, \;;run time procedures
% W1 ]8 y/ D, ]* i
! N  S8 q" {" t/ i- D# Ito go% m' h! s$ E) R! Z# q

  G. f9 J+ ~2 t6 u1 r+ l+ M. ^ask turtles [do-business]

# t& l8 C. k8 f( Xend2 K' W) F+ {: J: `5 V( |
) X& b+ W3 n3 h) \3 [+ q
to do-business ' c# Z" t" Y. ]# r- i

/ f0 o" s+ e0 j: N! t3 A0 q) N* d, L! r7 n/ o+ e" N
rt random 360

8 i$ Z! s2 k1 W2 t1 S$ P# I
6 M9 M' \: t7 ]fd 1

7 K5 Z- }- ]8 h3 T9 s0 y: z% B6 D2 p4 U! t
ifelse(other turtles-here != nobody)[
$ D' |4 m  z( `* P0 v
) C: j4 T( e; U, H* V. Y- b& R) l' D
set customer one-of other turtles-here

( w" u* Q. f, |7 v) [' D
$ A" Y1 o2 C9 w1 f& j" f/ ];; set [customer] of customer myself

& @. P5 x1 O- N' f5 Y" S& s( D( N) x$ V
set [trade-record-one] of self item (([who] of customer) - 1)9 a; r( X: k( R* ~1 s
[trade-record-all]of self8 h" C4 @5 t0 c& T4 B/ m3 Z
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self

( j/ e, v" F; C! |: }( ?4 ^! u! c) `3 ]! Q- R+ N% I
set [trade-record-one] of customer item (([who] of self) - 1)
/ b# A0 h, k) b  \: z% B4 T[trade-record-all]of customer
2 V8 J, z8 n# e3 A7 ]" z
9 N9 P& K4 G+ B+ U: }3 v( O+ |
set [trade-record-one-len] of self length [trade-record-one] of self
) f: i; i0 A, U

3 |% d! Z$ \  y8 n# pset trade-record-current( list (timer) (random money-upper-limit))
; x  A: R' Q& l6 ?5 W
5 V+ d% N5 C$ ]( e  n
ask self [do-trust]
+ t& k1 [8 X1 O, `, ^;;
先求ij的信任度
& Z9 U& N* [6 ~! ]$ E9 }  m9 i& P: @2 D! [3 q4 V  R
if ([trust-ok] of self)! f: C& g$ \, m! g1 i
;;
根据ij的信任度来决定是否与j进行交易[
/ i1 }$ t9 i% X, m6 ]* Rask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself. z7 L' O8 F* o* M* Y% L

" V7 \7 q7 l, @* o. {2 c[

) B" O1 F* u4 z1 Y- n+ D% Y" B! N% z$ }2 X
do-trade
& \' d4 E& A2 Z( N( q8 t$ y/ f3 ?
$ b: P- u" Q) j6 ^6 Q0 k
update-credibility-ijl

0 }! m" Q6 ?' X4 o
8 I: f: j! o  ?; Fupdate-credibility-list' |5 a( c! e3 d& D8 K. Z3 G
# g! Q. }: w, P" v2 ^! d: q

: T3 o  ]( J+ e4 gupdate-global-reputation-list
6 w2 U' V) ^- F: l0 R4 M1 A

  ]0 K- Z( U; l. u% A# {5 Kpoll-class
$ @+ L' N# \" F2 y3 a7 ~9 F) T' |

6 O6 x6 i" Z7 @* S+ H5 s2 l8 w+ Gget-color
. z; b& P3 Q2 ^  H1 I$ g6 g& h
) ~2 r* G" l5 Q- u# F
]]
, {% }- u" N- s* R4 d
; f( T3 H; t8 t  T# F( q+ G;;
如果所得的信任度满足条件,则进行交易
6 N9 i. z6 F& U% ~4 E; w& ]2 R0 C" D: E1 p6 l: C+ W
[
7 Q2 s/ z4 U/ x- U0 t; w. B# r" V
, Y0 o3 H, J' d+ l2 L
rt random 360

0 _( t0 R, [  j  p3 e: [$ F% M$ s% Z
6 n: ]" U1 F8 `6 h: Q, Xfd 1
5 v9 O6 v. n) |
6 @) I% C. x3 g7 n5 n+ A
]

: _6 }5 ]; b/ z
! |; B" D$ \  [6 Y6 Mend

# U5 k& o/ H' @! L' E- w6 b
7 Z) M" J# |/ q, S0 m3 }to do-trust 2 p# c3 Z( @7 \$ b1 ?
set trust-ok False$ C9 b( n# A  f5 z6 L8 x+ ~

2 e: {; l; U# e5 n1 ~: U5 ~
! l  k( g# S5 b9 P, A
let max-trade-times 0
* s5 ~9 ~' g6 |% gforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
) T/ k3 z" a* |! ]$ vlet max-trade-money 0
5 }/ [/ h- w  V' D/ E3 g# h# T& R  mforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]' b9 h2 s) J" a& }! S0 R/ r
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))/ S' W* J0 T5 l- n& M) Q: D

5 Y7 @3 m0 Q4 f& X9 K" e  t+ _/ z) J2 t
) |- f9 a3 l2 Y8 Y& `
get-global-proportion' W/ _5 j3 o: |, `
let trust-value
& ~  e" Q$ n2 Zlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
! n6 v# ^* ~1 `  q" \; I
if(trust-value > trade-trust-value)
6 l+ r; ^# E% f& c[set trust-ok true]8 {' N9 |/ s' [: o# b0 z
end5 F4 d& J! U/ n9 S
  b, m! l' R+ S- j1 Z$ ?
to get-global-proportion
( w; i) c( V0 e9 {ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3). A# M4 ^* I! }' m* [( n9 X+ x; ^
[set global-proportion 0]
4 ^4 b5 {& G. `) I/ W[let i 0
& |, x6 B, D$ }2 n) {9 D( R4 w9 Mlet sum-money 00 o# e+ T3 O' s5 d( j/ G
while[ i < people]+ h( ^) u/ _- M2 d
[
- D: W, q9 G4 p- t* L+ ^if( length (item i
& P5 X7 `. [9 n: _% r0 N! x* U$ p2 S; H[trade-record-all] of customer) > 3 )

4 Z4 Q* n  j$ m3 \% _7 I[
8 p2 e/ I7 }/ D% t: qset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
1 ?* V, N' R1 `0 Z, U8 Q' W$ }- e]
( q5 G2 S4 O. c& `# b  u: y1 [: ~6 `]
" }3 N% g/ ]0 slet j 0" q# W) G9 l+ d' H/ N3 Z( R% v4 ?
let note 0
" l; N8 r/ e+ e1 T! G  F7 dwhile[ j < people]
. g, P' w$ o( O# `& A[
2 \% F7 M* C! _if( length (item i: d& [& ^) Q% @9 a  i
[trade-record-all] of customer) > 3 )

* H: x) X1 Z8 z4 f[3 D: O4 J" j+ E+ v
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
5 F5 e& e4 D9 y[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
# L1 \3 A3 B* ?' Q% \8 A" m[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
: d( R* X6 }0 J3 a]
. u) h* [7 R  F& B& V% V  s: D]8 `' x; [+ f6 o# }
set global-proportion note
# j8 r/ e5 A/ q# w. P]
# p0 O& {: m; o! rend5 o5 G+ v' H* P* L! i- ]% F
5 Y( {! l4 v/ y! p5 `
to do-trade1 c5 r% l. K5 ^5 i. w4 z
;;
这个过程实际上是给双方作出评价的过程$ B" \2 Y% v- \& P) V; r8 m
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
! ^5 c" `  @& q3 Q4 O4 G7 [/ w- {set trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价% z4 R1 y/ j8 v5 s1 Y1 U2 g
set trade-record-current lput(timer) trade-record-current0 ]3 u( U, L) U" S8 p
;;
评价时间  n) _& w4 f8 N5 [2 p- K7 u: k
ask myself [
* C7 i$ {1 a3 r' U5 Q9 U' zupdate-local-reputation
# ^2 C9 K9 h. ^9 J% g% Iset trade-record-current lput([local-reputation] of myself) trade-record-current
, s8 ]! }2 G- Y% ]( J( I* U]0 z* z- D3 ~5 _2 u) L6 K$ f5 d
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself( N" A( m. Y+ x, n0 r
;;
将此次交易的记录加入到trade-record-one
8 w8 [/ g6 a9 S* w0 Lset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)+ u$ v9 `+ ]) p! H2 y
let note (item 2 trade-record-current )
, B2 r3 g/ C, U! T6 }' l) ?set trade-record-current% x& ^6 G9 S2 ?0 ]0 T7 ~
(replace-item 2 trade-record-current (item 3 trade-record-current))
' V; i+ ]6 w% I1 o  }* D7 o
set trade-record-current
( L* h3 }, q, j; I(replace-item 3 trade-record-current note); K3 H4 Z4 I7 }5 ]  ~

0 W- h( y% q3 d0 b$ L. Q
8 O$ z: ~1 f  w# C# i0 z# P
ask customer [
% y7 m. r4 m, ^, O! |update-local-reputation: v% ]' i4 k( B/ h/ i8 C/ G
set trade-record-current
1 o& X5 ^! Y3 M) X/ i1 z' W(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))

- v& n1 H. G' [4 u- g9 {2 F]
# w2 Z- G5 Y0 o2 S0 P. M; c0 k6 y$ D
0 O* [, |, o8 P+ x; R& m
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer* U2 L% ?' \' P

5 M* |" k) R  ~, E, zset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))1 p" y% U$ c1 H0 q$ U! l
;;
将此次交易的记录加入到customertrade-record-all
7 `$ j/ b8 n! ?# E+ ?( |2 dend6 o( w( k% b, Z4 S# k

* i  j1 e4 M3 B1 [to update-local-reputation
* q  S, D1 [; v  t9 ?( Jset [trade-record-one-len] of myself length [trade-record-one] of myself
$ M' h7 H; {, n3 X! L% W! y* |8 S
& T6 i; c, N8 t! W2 Z8 D' \
;;if [trade-record-one-len] of myself > 3

. c3 f5 Q" A  q5 I# H# ~update-neighbor-total
8 L! B3 b/ X. c;;
更新邻居节点的数目,在此进行. E: h$ [/ W5 H" G2 ?$ I3 m5 t
let i 3
  w' T0 a$ w: T/ x9 E$ O1 alet sum-time 0
- D) R  z$ f3 x0 ]; [while[i < [trade-record-one-len] of myself]. x8 X1 |! z/ Z, n, A
[
- Y1 @7 T4 w0 C* m% {6 T. R. Zset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ), F' F+ k& m; d
set i
: N6 E; d. ?% }" J, X8 W5 T( i + 1)

3 j2 `9 ~( }6 a) C]
* I) b2 Y  q+ {0 Vlet j 3
, }6 E5 |6 k$ {9 N7 Rlet sum-money 0/ L+ `& q8 o, U2 {$ U
while[j < [trade-record-one-len] of myself]
$ |9 L9 ]3 b7 F[- R+ Z; A; q* z: i& M, j7 x
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)
+ T7 s* Z3 j7 N/ y1 r7 Fset j2 U- u8 l! q) }. X( c
( j + 1)
: J% X9 O* M  }. ]3 g
]9 s7 V9 h8 V$ W; I/ F' O
let k 3
' u! n/ h8 B+ h5 `, olet power 0
- @2 s$ t: ^9 L2 alet local 0( o4 o* v+ c, a2 ^
while [k <[trade-record-one-len] of myself]
/ n+ e7 _' Q* k+ {[
1 T. ^0 h9 [2 k4 Nset 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)
' i4 V( P" K5 g* Zset k (k + 1)3 h% `" d% v. F$ I; _% i4 O7 L
]5 N0 B7 ^% {; \$ [$ [* E
set [local-reputation] of myself (local)& M$ p7 ^+ J' T/ {" @2 S+ U
end
& Y- f- K3 A0 N' F. k* x* z4 d+ C9 W3 u( }/ B6 s* y6 N/ l5 L
to update-neighbor-total/ N$ q0 G1 r1 T+ Q7 @: s# C

5 b5 z3 o, k! y0 E- U8 x5 dif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]% u* k3 r! F8 f  Z6 Q# J2 w! [

+ \$ L( S, i; ~) e( @; C

# o$ r' {1 U+ j' K( @3 h" Cend1 a# n2 }5 o2 G5 T" w

) R9 E4 N, b- S& q; h" V4 T% c: Xto update-credibility-ijl
& X5 M+ J+ W) C% `+ f
$ [% {, v- x* w3 _* d;;
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。
3 q6 {( q4 I6 p3 s/ a+ f# glet l 0& U/ u, L% v; u0 X+ ~) k2 J3 B, x. S
while[ l < people ]
0 [8 ]& u, o: }2 {;;
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2 n5 X' C: b, z
[& a# F! J. t2 u4 L: C$ o" \1 I
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
- k) ]* c# C# F2 xif (trade-record-one-j-l-len > 3)
9 i+ ], m* c, {9 V, J8 R[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-one8 i3 s& i+ ^( x* v; D# E' c3 |- C
let i 3
- o6 Y9 W# n# F0 h+ Q* Qlet sum-time 0( t& }1 l0 c+ Y9 w
while[i < trade-record-one-len]
* [2 K; i( T: m. O2 e( T+ Z: U, _[
3 B* `) |# h  R1 D+ O# Oset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )2 g1 G/ u6 [2 @- {3 `0 V, |
set i
8 G2 N% U( \8 W! {1 |# V$ D# v& D% d( i + 1)
4 X5 c5 m! C. m. w/ I# J- j
]1 D3 E' d- m5 n( B
let credibility-i-j-l 0/ n  g6 f0 D4 \4 n5 n) q4 a. D/ U
;;i
评价(jjl的评价)  F# A! t+ J5 x! _! k$ T! [
let j 3" y# h* j$ _4 C0 p
let k 4/ J$ j+ L/ h5 |; _$ [. @
while[j < trade-record-one-len]- x+ c( Q$ d/ @. A$ g
[
% \, v4 R2 c+ ?9 F8 X; Iwhile [((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
8 Q! D% w  X) Wset 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)2 ]& b" v8 g7 H4 X: T
set j
6 D' _0 c. b. B( j + 1)
- ^% \. Q" H+ N6 r( q/ W+ Y
]
0 S* x7 I: \& l6 T& X9 Y4 Iset [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 ))
2 |. x) p8 d8 Y; T! M; U, Q% i3 n) v0 H
7 l" l- ?- h3 W9 W, {  m9 e
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))" h" ^3 F! t+ W
;;
及时更新il的评价质量的评价
; l3 C/ i" _* _& H8 _set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
6 ^0 _8 j4 h1 I- F) k- Jset l (l + 1)
$ _- O- j* B5 h8 s7 o6 z]
( k* }! L2 n* H5 kend  g5 u  E% e! {

6 f- l3 \2 K' T2 W4 |  x* U2 i! hto update-credibility-list
% w( e+ k7 U) f  W7 clet i 0
4 ~- p8 t! k  G. q0 O+ [" nwhile[i < people]
1 |% J3 E" h+ l, @; \1 S. k[
; c: H/ d; P/ |3 M9 Vlet j 0" v& ]/ z8 M5 H/ I2 d
let note 0" \' x7 n  C3 @+ D
let k 0
$ f! z9 H# p: k& R  B( s2 m;;
计作出过评价的邻居节点的数目
, U3 g( G  ?$ \while[j < people]
2 ?. X% Y2 C2 w2 m4 P[5 S0 j/ v6 \9 a* h
if (item j( [credibility] of turtle (i + 1)) != -1)" C! S& `8 Y1 x/ s4 u
;;
判断是否给本turtle的评价质量做出过评价的节点
+ V& n3 T) }$ k7 ^8 F( q2 I2 S/ h[set note (note + item j ([credibility]of turtle (i + 1)))
3 }2 q0 A& ^/ y, }6 r8 p1 l0 Z& r( t;;*(exp (-(people - 2)))/(people - 2))]

" G3 T2 T) {  \3 R6 ^- j5 s3 d3 T3 mset k (k + 1)/ Y  j6 C6 h5 g
]
" s) ?  Z2 U$ ^, h" ^set j (j + 1)
  d/ x5 \2 T/ f5 z]5 N, h: |3 P" V3 W% R& g  m
set note (note *(exp (- (1 / k)))/ k)
$ r- D* K9 {3 \$ P% _$ G" x( ~set credibility-list (replace-item i credibility-list note)  m( F4 K) C# i" v4 P' w6 T8 K
set i (i + 1)0 Y7 S; s" Q& ^6 T
]
& [7 v( f0 r6 v( J  z8 W* R2 Wend  b: V5 r! ]7 `( l
; L' e/ g$ P+ U4 C8 u3 f  e" T
to update-global-reputation-list
2 ~4 N+ k" P# }7 G% M0 j3 mlet j 00 ?" e! ?1 A$ S* n6 w
while[j < people]! s6 R, G+ ~" G- ]$ N6 l  o% R
[
7 z+ _9 M9 ~9 v5 K, L0 A: v/ flet new 05 C- ^" _% ^4 d0 n9 ?: m5 y6 v! x
;;
暂存新的一个全局声誉
2 R1 k, T5 e# K, w$ e: \let i 04 P. x; R$ l$ v+ U3 M7 Y! f
let sum-money 0! [9 C% v; U$ p/ m% `/ s5 p
let credibility-money 06 ]4 x' Y- |/ ?5 M# E
while [i < people]
0 G- s+ W0 g* a4 y[
8 A9 y$ T% J' ~: S9 A$ Bset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
# e4 a. r* v! C  K& S! gset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
. `3 S: l+ \2 A* P, t9 Sset i (i + 1): z/ _4 S9 C' ?
]
5 M0 A& e% `9 M# J; q" ^/ dlet k 0
& {2 |. E, g4 w6 n3 C/ Jlet new1 0
7 L3 w) ~. ?+ t' Swhile [k < people]& w/ Y! h) Z  O4 V& M4 |
[: |0 m# z0 M# f5 [# z
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)
5 _& `6 }$ `& M, e/ u* J. kset k (k + 1)6 j$ c2 v' ]- Z' G3 H. Y
]& z6 v2 q% @: v
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) + H: a8 [; L% Q5 f$ r# f
set global-reputation-list (replace-item j global-reputation-list new)# E6 q" C6 X$ R+ c+ p/ Y0 r( @
set j (j + 1)
: i/ |- R2 y: D7 s, b! Q]
5 b" A8 m# Z- O4 v4 ~end
% J' D: L) S$ z+ I. m/ k  E$ T  l( A: ]: a) _9 G/ t3 r) o$ f
9 i/ @' L5 \8 @: b
" M5 p. x9 q- y. s. s
to get-color1 ]) M  Z( k$ d, E
' @7 ~) u9 |" |- a0 Q% H
set color blue

" Q4 \- l' i1 h5 z+ Vend% u) T7 m# ^4 z' w+ x& I+ j# N
: P" ~/ x3 Q, E
to poll-class7 ?  E1 V5 u- A/ X' ?/ P; Y8 L
end
0 \# g8 W6 Y2 z! L7 F4 v
9 f4 G1 j8 Q& f) Z+ L- n, tto setup-plot1
/ X/ P% a7 s! ?6 k# @1 ^9 w5 s- m( b) |& x- {, N0 l
set-current-plot "Trends-of-Local-reputation"
+ w; p( ]) A6 |2 `- n
  }) s6 i! o! ^( o. Z
set-plot-x-range 0 xmax

  i0 z! k  L5 P7 x  l  l' I. x! L0 u# t
set-plot-y-range 0.0 ymax
& I2 f% C3 k8 w' C# U
end6 \8 Q$ x/ y2 z, X( m: u
  E2 ]. n/ K* \5 k; t
to setup-plot28 ~; A0 B- B: y# ^
9 ~5 D4 G4 D- Q7 V; k
set-current-plot "Trends-of-global-reputation"

+ w% n! P& B" }( H6 `
/ b: @% k1 ]$ O! n+ `' L( ^set-plot-x-range 0 xmax

1 ]( n! l$ ]" d# J, @: X4 w6 \7 l1 a; ]( W# n2 v$ g
set-plot-y-range 0.0 ymax

* J1 G! L# }% u/ ?$ [5 hend
( \# q* @8 t% r3 p% H
3 K3 G7 o" ]1 j2 b  |  Y4 Jto setup-plot3
% A% u) |5 ^# g0 R
3 I( ^& Y! h" O; L1 R+ Q/ ]- Tset-current-plot "Trends-of-credibility"

( x) e( ~( o9 _" m- [
' V; t' @- u5 J/ e* R* eset-plot-x-range 0 xmax

: M! ^6 g, w* s2 V7 B: [6 Q' t9 `2 C- t' L4 z
set-plot-y-range 0.0 ymax
: b. f3 x" A" m
end/ L2 S% ?7 u2 k9 ?

( t( d( @6 b( H7 K! yto do-plots6 T) p# l/ B  u, j8 B: a
set-current-plot "Trends-of-Local-reputation"7 h3 v  N. U! x/ \
set-current-plot-pen "Honest service"9 ?  }/ J- k  Z/ W! D# C/ T& Q
end# ]$ {, i, B/ D) v8 |0 ]
* u/ r" F: ^. u2 J' ~" |( R8 v5 {
[ 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.8 h+ Q* u- c) S# E

* m6 k; I& W" g4 O/ n6 d8 Y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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