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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:
2 J0 M$ F1 p, r, H" v3 oto do-business
: z0 V: V- Z" p! L. \6 Y( k6 Q0 P9 Z rt random 360
: t: |0 b, Z4 p, i- C fd 19 p. f6 p  x0 ?8 I
ifelse(other turtles-here != nobody)[
5 j* r; P! O3 O& Y   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# ]: I. Y/ Z6 B   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    3 i! B; I( r4 V* g" \% ~8 ?; v6 V( I! @
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer. t9 q# G& i' E: ~3 Q# I: \8 h
   set [trade-record-one-len] of self length [trade-record-one] of self, h" a# e0 Q! R* ?7 E% o
   set trade-record-current( list (timer) (random money-upper-limit))" W( o6 V: [2 g; N8 o+ j$ D

; B. S3 s" G2 ~* K问题的提示如下:; f- ^/ O, [# T
/ C6 k6 _" Z% r
error while turtle 50 running OF in procedure DO-BUSINESS: p7 ]( H" i3 @$ _8 a! m/ P
  called by procedure GO! f  u- U* I, E; X2 L
OF expected input to be a turtle agentset or turtle but got NOBODY instead.( h9 a4 z6 `$ J: o0 r( w. F3 f: O# v
(halted running of go)
% _- t( Q3 c3 N  L: P% p
+ m1 J, H: d, z$ A' e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~~
3 Z+ Q% [8 M7 j7 U7 f, f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3 C( j) E2 B+ X; @
globals[5 ~# Y$ w6 @: e
xmax" D# ~. w9 s  ~0 [3 q+ X
ymax
8 r/ q- g( W+ @! bglobal-reputation-list
0 b0 D* @4 j( m4 Y7 K# c- }( N9 V- ~: c7 m3 u$ v; J0 H
;;
每一个turtle的全局声誉都存在此LIST
  p' Z  n7 ^2 r( |7 Acredibility-list6 C, [# m' q5 y0 b" A
;;
每一个turtle的评价可信度
# c1 g: l- D/ rhonest-service+ i3 w1 e1 }+ I
unhonest-service
# L/ L/ D- J1 ?oscillation
2 d1 O$ b3 ^7 [7 G+ Y! Brand-dynamic% h% n, v6 O3 L
]
7 ]- w! a. t. Q4 S' v9 A
; H/ ~  A$ D3 E; w" Xturtles-own[  I! h- K) B+ A& ~+ r0 M) M
trade-record-all/ @# {! R, o! d6 K/ `6 w" G
;;a list of lists,
trade-record-one组成# |. H3 d1 |1 y0 z( K1 E3 |, V
trade-record-one
: \9 [/ k% Q2 L# A  V7 A# t" f;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录
7 t+ l. {; G5 g1 {
: D% L3 B! e; L# r9 T  I;;[
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]]
, g8 i6 }+ H* rtrade-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]
# y& V. X1 J  h  bcredibility-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  S0 _: |8 X. j9 l; B+ a
neighbor-total- E1 ~  J: s5 v3 A
;;
记录该turtle的邻居节点的数目: w/ l# O! f  [5 L% l8 s2 `
trade-time- A& k: X8 j& F# i) d
;;
当前发生交易的turtle的交易时间
) p# U+ {- i& ^6 ?appraise-give
! {4 C& s3 p" Y& x- E' f: C0 T;;
当前发生交易时给出的评价, e- D" B  ^: ^" x
appraise-receive
, g5 }' u$ X2 A% y+ M: `0 a0 r; M;;
当前发生交易时收到的评价3 Y/ i0 ^+ y6 p3 R# p: _
appraise-time
# U4 L+ j' r) Z;;
当前发生交易时的评价时间
+ ~! Z3 N5 y5 \5 ^/ J& P0 F/ Blocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
! d4 b% M! l" I. d' `$ I% strade-times-total3 Z  ?! a: V, b- U: |2 [" S+ o! s
;;
与当前turtle的交易总次数
6 |; Y3 p0 @- ~trade-money-total) R1 l# m, n4 ]: n' _" j  a
;;
与当前turtle的交易总金额
( X! ?  }/ u+ L: U5 s4 ylocal-reputation
% `5 y; n9 ^2 f5 |( I% @global-reputation
/ t1 J$ C7 Q7 O: \% J0 u9 r  Pcredibility
6 h; {8 I* T. l  E5 c;;
评价可信度,每次交易后都需要更新
5 G2 y( z% k$ B9 y" A& acredibility-all
, x- n( @0 ?/ O2 N; i5 i1 [& X;;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
( H8 N0 W+ n' T, {' w  E0 R  n3 m6 A
;;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
! e: G9 z* d2 [: j0 L& Bcredibility-one( o1 K9 l2 ?# r! b
;;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people8 j8 c- L) i* f( {
global-proportion
; _8 m, N6 u5 W  O% T3 gcustomer; {1 L" ~' ~+ D
customer-no
% k4 K  X, e, d" b0 z0 p9 ftrust-ok
& O' M$ @9 x: ~  I. [$ {trade-record-one-len;;trade-record-one的长度
" o7 }+ n0 p4 i# E# a]% L" p9 k( F! Z1 E

2 f6 {, ~( U' @+ J3 L, q;;setup procedure
0 {- L8 M' i$ n, G3 D
0 j" d8 a0 D6 K1 H! Gto setup
! ]$ F8 s; q, s* f
. ?  @9 s) C8 p1 e% nca

( x# B8 r0 g4 J8 `4 x
- m0 @4 q8 K. D1 A  Rinitialize-settings

! k* ?* ~; g& r8 u
. _& C" D( {' B% }: f; bcrt people [setup-turtles]
# v7 z' @. U5 q5 @' m# G$ }4 f

  U0 A; `* }& W6 W# j8 rreset-timer
$ S+ Q3 b( h  \. X: G
$ J  S1 I" @7 w/ }+ }
poll-class

3 @% F! M3 Q5 T8 P' B5 d7 A5 o+ X  w% n
setup-plots
: N1 B2 W1 b1 V

; D) ~. {& {' n) wdo-plots

9 t' v2 j+ C  d, s% t0 l) O' hend3 H. g7 s+ d& P* Q6 V7 b3 |, i/ N) {

  m0 G. \! Y) O( T7 q4 cto initialize-settings
. I& n  ]4 e0 i1 c# h5 a$ Y6 v7 W
set global-reputation-list []

( M7 T4 c) g9 T. v0 m! P* M3 M
+ Y1 g( c" z) ~set credibility-list n-values people [0.5]
. \2 @* v  ]* T5 V1 A; j2 f: K

4 u. F, E: M, ]7 ?( [set honest-service 0
; ]5 g) R( D% p% Z: P

7 R  a* c- ]" F3 A1 v+ |, Rset unhonest-service 0

0 p9 ^5 G* n! J6 U& P% v' W3 E1 n2 O' J( G8 x2 a0 ^3 G/ H; M/ k
set oscillation 0
6 g2 V0 E0 D/ ~3 [7 Q: \
! l$ a- ?$ a. v; h* k
set rand-dynamic 0
& N, U: u& R) I& |  d7 f: j' i# R
end: _+ y3 r. R5 y5 R
( i3 b( ?3 A2 b* N% v2 t
to setup-turtles
( U% i9 {& L) }; y! dset shape "person"
% G9 s6 s) {- H+ P0 C; ]setxy random-xcor random-ycor
% a0 p  Q4 ?9 f& Gset trade-record-one []3 c6 y8 n; y0 j  N% i" l
0 q+ T) L2 i* S# ]
set trade-record-all n-values people [(list (? + 1) 0 0)] 6 Z! R0 _( L/ B+ G
6 }& t$ O% O5 H, J. g1 L, |
set trade-record-current []! y5 ]7 c3 f% d& K6 c
set credibility-receive []
) t' C% Q5 E  P& ]8 |: Iset local-reputation 0.5
( M2 m% M& `; v8 Oset neighbor-total 06 M1 B/ H( Y2 n
set trade-times-total 0
: H' w5 S/ I: O" V# Hset trade-money-total 0/ f* m: m/ J% Y2 i* A7 g9 B* s
set customer nobody
6 y% C- J/ o6 I4 A7 |set credibility-all n-values people [creat-credibility]
. ^# d6 V& u- l0 O, Fset credibility n-values people [-1]
6 G2 P  u0 b( w$ ]) Xget-color
0 ]5 x' ~' c0 h! y. M* ?

. i. s+ J3 {* w: q3 i( ~7 Vend
/ w9 D- ~! v6 ]: d5 n. T0 p' p
7 Z6 _4 z& X4 @4 M$ D* Pto-report creat-credibility
8 u1 r8 \3 h& I* @2 R( u: g( Zreport n-values people [0.5]
( s3 e& n# k; X7 ?& ^1 O1 c. y7 nend( w$ g! Q$ \  u' \! }& `8 t: ]! H
- ]" I0 u3 V: [8 V% s% |
to setup-plots
  r7 F) A1 ]- d: O+ m
# E5 {# b9 [  S* {) q; A2 Tset xmax 30

; K0 h- w4 f, k5 i% M6 ?4 s( b$ \  k: Z: W
set ymax 1.0

+ W* U8 Z8 ]$ ~7 a; N" K& x. w. v. L! k: H! U( i# T
clear-all-plots

3 \- e7 m) S$ N% D# n, M, f6 [5 v) A% I, G: M
setup-plot1
; D4 @+ R# k5 r. M2 A

0 X& P8 ]  B: w+ c- ^0 }4 @setup-plot2
# e/ v: x3 |  }2 |. A) E3 a7 X7 @0 N

9 J4 C2 a- W0 ]; e( Fsetup-plot3
( _9 P/ [) _- }* p
end$ |, U" J6 I# y  t* r
, ?" i# r5 B4 T% c3 r1 o
;;run time procedures
  x1 R+ E. x* L- W0 U8 m! S. @+ p4 t
to go0 Q5 Z8 p( p. V

0 N$ d6 l, J2 a& K+ F6 `5 j+ Yask turtles [do-business]
- U0 Z; J& y- U  [3 X
end2 Y) a) _" @: N8 Q# ?1 E
8 U/ c" F# p  S
to do-business
" j* D, w% e$ q: ~( c% I- n4 p$ h

' t# Z; V5 c2 D) d3 U5 y/ x9 a: s! J4 K4 i
rt random 360

$ k* k2 X& e# t, O( s0 j! f  [; c! F" T: N$ r5 |! g8 h
fd 1
: u0 g" J7 A1 W! K' I
% C! ^" `) j% `& r; M1 [* B
ifelse(other turtles-here != nobody)[
) T8 M: X" l1 j" e( a. I$ ^
; _! T) R' \; r
set customer one-of other turtles-here
6 W+ |7 ^% r* o% B7 b5 _

! |! y8 R$ T" s* J0 k8 k! \;; set [customer] of customer myself

8 h# m5 T' p% N- E# L/ m( u* q" k, ^, U2 E( e: }7 G
set [trade-record-one] of self item (([who] of customer) - 1)* a; A# a' M, A' W& @# A1 l
[trade-record-all]of self8 ?4 i) n% _/ R/ T2 O' u
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self

) M$ f/ |6 o7 R# \3 p4 N. J" a; Y/ @' p& j/ N
set [trade-record-one] of customer item (([who] of self) - 1)
3 a) B2 f" [1 W1 Y, i- R[trade-record-all]of customer
% s; V0 e0 v4 P7 g; ^
, L* s' n$ k0 q+ a  X7 |
set [trade-record-one-len] of self length [trade-record-one] of self
. c) \8 H* J6 a( O5 X9 v9 Q
/ \9 ~+ Y$ \! F" }' ~9 L+ a( \
set trade-record-current( list (timer) (random money-upper-limit))

# s0 U1 k* A9 |" d! L9 k/ C/ i! I5 G  H( ?6 y
ask self [do-trust]' o  S% N$ q( e6 G( I$ E
;;
先求ij的信任度
5 l% j! e2 ?: h  A' E1 U3 e/ I. f" @
if ([trust-ok] of self)
+ ]4 s# h8 q2 ?( o$ A# B, W7 i;;
根据ij的信任度来决定是否与j进行交易[
$ M% S" w+ y/ |& U0 cask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
+ M; \; x7 A' F2 W. J8 Z  ~2 V( p! T, m% {' e
[

+ N: G" p) \" u" v9 ?1 c* b. ]  d) _; j% T# J8 Z( b1 J7 A
do-trade

( p2 O- p% ~+ f
& ?$ @, g  A+ Eupdate-credibility-ijl
# I6 @4 N  @, m( a" d

3 t2 T& [2 U# P$ F) O, Qupdate-credibility-list
# I* H6 S. f& v8 s: f

9 [1 e; D4 U6 H5 h  F- I
. n1 X* q. u2 u/ {7 supdate-global-reputation-list
1 r4 l3 q  [/ ]7 |, c

2 P3 h8 r: N" F1 tpoll-class

1 ~" @' R/ r9 z) \  [6 I: n. D9 V/ o
get-color
: H4 g! M9 ?# [8 X) J: |6 ~

) A2 d6 p* M. N+ @" o]]$ Q) M6 ^- f% o/ m6 Z& ?7 _4 L$ O
* A& ?  D# w4 ~% P
;;
如果所得的信任度满足条件,则进行交易
; W$ s8 c, J$ a; C( L0 v  y
' y& s" z0 a9 w# }; J[

- b+ X- u# v* Q5 N6 L9 Q, ^5 s0 G1 @, o  r& l" d& X
rt random 360
+ q8 D" u5 Z" U% a- w& q8 P6 r- n

$ Q) @. p; Q! a. \* P6 mfd 1

7 b, K& t9 _9 P$ b! ?9 P8 ?' l/ s- ^, \$ P; Y3 p3 s7 ]0 `
]

+ j; Y0 \* o& T8 J9 t
8 l: a/ A  F+ O; j6 q2 ~end
9 w& H. M7 ^  \0 b+ U# j0 l

" W/ s. e' j6 \' Z, M8 C- Sto do-trust
- n) A; J4 m+ lset trust-ok False6 V& u4 Q+ _- |0 k3 K: e# L0 Z
9 F% k% _7 S0 m" q5 ~$ z9 \

0 s& d: s4 F. @0 t& plet max-trade-times 0
7 d6 F/ h8 |; x% m: r- U" Lforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]1 S" @7 }1 c% d# x! Y  R; ]+ L1 G4 a
let max-trade-money 0
/ [# R- _6 d) ^( m% Rforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]  ]9 f1 {9 F7 o9 d3 m9 R* e5 W( s1 V
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
9 M* X; v6 r0 F: E% Q: X; B/ \. R8 [
7 C# H( o" W2 y
$ |2 c7 ~0 D$ l  Q
get-global-proportion
* U+ s1 x! K# H3 P5 G9 `4 _let trust-value
/ _0 }4 Q' w$ o3 M* n: V' ]0 ]' i7 dlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)

. ?+ x- q) i7 rif(trust-value > trade-trust-value)
# T: T* }0 U/ s" b[set trust-ok true]8 f# z) Y, d4 W" H
end0 L" T; b+ ]* h! @0 J
% C' p0 t8 c7 m" _$ \1 x6 m
to get-global-proportion
) J8 k; n, w0 v8 C! J, gifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)5 j8 w: x1 f8 P4 X
[set global-proportion 0]7 Q- g) \/ ?: g" ~( L7 h1 ?
[let i 0* s& |- e' {. v0 e; u( L
let sum-money 0
# ]0 N2 H& U& ]- _" \while[ i < people]
8 o: y7 q, P& Q/ {! l1 s[
8 z$ r6 U- `9 d- V4 G: f1 G9 _if( length (item i
; F* |5 H. Z3 r; ~. l) b/ A* B[trade-record-all] of customer) > 3 )

6 e& @6 m. A1 G/ S) D[
* R* j' z3 ~, ~! p; W( v. Wset sum-money (sum-money + item 2(item i [trade-record-all] of myself)); e+ Z) U7 q; B- y
]
9 `8 W8 d% m) V% N: i7 v]8 I, @: H+ J0 ~6 x+ f
let j 0
# H( R  N, C; v# T. blet note 00 A( ]1 g9 j3 C% v
while[ j < people]
2 F. G* e/ r2 ]! ?2 }/ P  ?' o* Z[9 t" j  e, E/ H2 l
if( length (item i
# z4 u, ~2 d+ y. B6 e. x' S2 q[trade-record-all] of customer) > 3 )

6 T( u1 d+ i3 |5 R4 f8 B* m/ J[
& p; _( Z2 x! }4 @" a9 Zifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
. J3 o; t! j5 i5 @9 ?: A[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]4 r( c* F" {& x2 A8 P
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]  z4 v# r7 |0 f6 _0 W
]
, ^" E9 m) O) K4 S, [5 y$ ?0 Z]
1 K" c6 [# `0 p, _8 A0 P7 \set global-proportion note
& S1 h8 I0 a( z5 e: c2 ], L]
  x. p7 y+ [) P: `1 @end
5 v, g1 I# O0 \* w1 c- D: ]# `5 G& i% |8 L  m4 T7 `: T
to do-trade
' `* A* \. M3 e' q# A: j;;
这个过程实际上是给双方作出评价的过程3 Z$ j  R* `! o9 w2 I$ V  ~
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价& D4 z+ p4 L: M
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价
8 t8 T: [* ~1 b" `8 j( A( m% P' p; y  `set trade-record-current lput(timer) trade-record-current9 h' ]' g8 a# @; V) Y
;;
评价时间# ?, M% Z' H/ [% |3 t
ask myself [7 ?' l/ H% s6 l
update-local-reputation
, ^; ?' k' Q: wset trade-record-current lput([local-reputation] of myself) trade-record-current
* B* c4 @+ A+ g. ^, M. ~% M  j]
$ Y6 a! q; V7 l5 |- B! Z2 [# }set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
4 ]! v/ f* a: V. n3 l;;
将此次交易的记录加入到trade-record-one: @; N( P  ]* P. Z
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
: g- w" H* r# F; V% Flet note (item 2 trade-record-current )' u( B; R4 e: n* E% ^- J
set trade-record-current8 I: x2 B/ W  O6 Q7 R. _
(replace-item 2 trade-record-current (item 3 trade-record-current))
  V: F, {8 n& L9 b3 S( {
set trade-record-current
( {( G1 V" j# _- C/ e1 r2 V2 m(replace-item 3 trade-record-current note)- N5 Z( V; g. \# B& F0 V) ]
8 x8 g8 T' t$ i9 G* m3 O' O; p

0 o5 P+ o2 k1 j% n8 l5 q2 yask customer [
3 i; u  }: c1 a1 Aupdate-local-reputation$ Q  z% E; J3 w% O# W4 k' I
set trade-record-current4 A- d6 w3 ]: d6 k1 F" A. l( X
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))

4 F6 `" L6 [! g, D]1 e( \! q6 j0 _( R6 M

4 T  Z' A# e# A, T( Z

% `5 U: Q0 j6 H7 Cset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
! @$ Q2 l8 J% D
- D8 q  ~; @* L+ J7 b5 ^
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))% u& b2 Y( l$ }
;;
将此次交易的记录加入到customertrade-record-all
" I; h# b  a, }% Zend
2 h" N" F9 x! h2 X6 d8 M; M% h# F; o0 ~. {
to update-local-reputation& E; G' |, A- B  m0 g6 {6 G$ t, e
set [trade-record-one-len] of myself length [trade-record-one] of myself/ c1 a3 G: h6 p4 ^7 E1 w/ D  D
: P( e* b2 d. {* @4 X  q
+ M: c- C# B0 s( R5 v4 a1 s
;;if [trade-record-one-len] of myself > 3
6 m4 a1 X$ F  {
update-neighbor-total8 A+ ?/ ]3 ?/ k5 J  f
;;
更新邻居节点的数目,在此进行' q& O6 n! M4 k8 `- b% N: e
let i 3$ s  ^, }3 g7 M4 T2 s1 q& d
let sum-time 0
  y+ Q0 q0 x0 c3 R3 ]while[i < [trade-record-one-len] of myself]
: z# @: r( ]3 l7 P- E[9 k+ K* f8 L+ J3 q, U# _% J  h% z
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
3 N; m9 @3 ~) nset i
. W7 K2 e) a/ |! b" ?; W) ~( i + 1)

. T! h0 B1 U7 I# w' S" U2 F]
5 W$ x0 o) Z; |; Olet j 3
* l; c3 @8 q9 L2 ^! olet sum-money 0( q3 R: ?( s% U* }$ r
while[j < [trade-record-one-len] of myself]' \0 w' o( }: i1 z5 @/ }
[9 K; ?* q# s: c. b, f0 g! b& 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)4 O) e( t5 m5 P) z* i
set j, M7 c' _8 Q! Y$ w9 m# V
( j + 1)

6 ?" {+ w* M8 P3 F]/ R" j- e/ O7 g" I" O# C1 h
let k 3
. ]" T* ~3 N/ R7 o( \3 E$ G' _% Tlet power 0
) u, E. U1 a: v  V' ilet local 0
  j3 Q) m- B/ N7 mwhile [k <[trade-record-one-len] of myself]
  t8 b7 [/ k7 }[: J  q) c+ m" M( l/ {) I
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)
1 }" H1 `. B% {set k (k + 1)5 _+ ~3 m% ?$ S% j
]
) n% ?3 E8 |- xset [local-reputation] of myself (local): ]" C! P2 F" j# w! C$ G5 f8 e+ O
end
1 |8 U4 {' W+ ?2 V" D- M& R2 t9 X5 R% H1 `
to update-neighbor-total
# n; e2 x( T# l
+ K# x0 ~  M2 ]; nif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]" x8 v; {; B6 ^+ l3 r: h
4 J9 \# H% S7 s8 c: h

% g; G; O% [* F3 ]' s/ Fend; {, M$ C/ `7 K* \1 d* X( l

$ ~% m% Q* E5 lto update-credibility-ijl $ D: `2 m- d, u9 p- M7 z

# C( J" K$ L& f9 g;;
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- |1 L( z. M6 W5 R4 u9 C
let l 0
4 G/ M% ^+ o. Qwhile[ l < people ]
3 b% }7 N, w- X7 |2 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
- \; ~% `! j* g* q7 S/ x[$ _3 E+ V' ?' e/ S) X$ b0 v( l
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)2 g4 r3 _/ D; s$ c+ P1 a5 }
if (trade-record-one-j-l-len > 3)
6 i  }9 U/ G! O* j- w[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-one5 U$ B. q7 O9 Z! k+ k
let i 3
( P' \& V# q5 L! E' jlet sum-time 04 f, T6 c7 c! E: ?8 o& L1 _" i' @8 m3 x
while[i < trade-record-one-len]
# n. `7 A' l: F6 _) ~[. v' o# T2 v% A) r4 Q
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
. y! ^5 }# m8 G; p9 Oset i
! h. j% O/ b0 ^0 C3 v/ _( i + 1)

! i* v; S, p+ _* F: x% y4 ^" n]  \( Y- p3 l# x" K
let credibility-i-j-l 0
. \* B# B. |# u1 g- i4 ^;;i
评价(jjl的评价)% E# {8 x1 x' I8 g+ r
let j 35 |# T/ {, B; W5 w% C2 X
let k 4' F6 L8 }* x5 Y( h
while[j < trade-record-one-len]9 E6 R6 G% l* }  L4 V- c$ O- S
[+ P) d% j4 |# w& K6 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
! F# k. N* g. ~7 C0 Uset 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)
$ b) G" e' L! K1 t) P0 a* o2 Aset j
3 R4 D+ v- g& H3 H5 G. Y* E0 W! G( j + 1)
$ l' O2 |: F9 g- M+ t
]
" N" F5 [  x8 `! cset [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 )). U" f- g% q( S+ }
4 B+ i) @4 A. S
" z& W9 u( s4 t5 b+ I
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
7 R" Q$ R0 y; ?/ G;;
及时更新il的评价质量的评价  Q. S, {/ ~7 _. b! R
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
& f4 ]& k& j* G) rset l (l + 1)
8 {2 P5 V2 V# I9 n, A. e9 ?]  Q) u- ?6 G* [5 C+ S
end
5 R5 c( ~# e" H$ @- J) G
8 U; U$ y3 o0 x' N! Q% N0 |to update-credibility-list
1 f- m* w+ ^* a1 flet i 0) O4 |8 x& v7 r* u2 [9 O
while[i < people]# @2 i: l8 r0 d) }/ S7 K
[  A% e& X8 O9 K
let j 0; G5 |2 b% u) P; c3 h2 W
let note 0; Z2 Y/ x9 d+ T2 T% V$ E0 Y7 o
let k 03 M3 z4 p1 P! Q* ~7 \" D4 ~  o, t  q
;;
计作出过评价的邻居节点的数目
8 M4 `  Q/ B# {# K9 g" l6 m3 Uwhile[j < people]
6 T, I/ b. v* x- A) o[
- C' x' d% l+ Vif (item j( [credibility] of turtle (i + 1)) != -1)
2 T9 _/ D- Z9 ?# v7 \* d0 E;;
判断是否给本turtle的评价质量做出过评价的节点
% I( A3 [! D3 g+ c" p) [% Y[set note (note + item j ([credibility]of turtle (i + 1)))  |8 k$ @7 E/ F
;;*(exp (-(people - 2)))/(people - 2))]
$ E% K0 G' k* B# f- u* V
set k (k + 1)
. G" d9 O( Y7 b& E]* e3 P* D2 |/ ?9 ~: c+ x; b
set j (j + 1)
, B0 |* |- O, V  C]
* I6 @& v6 c/ C3 M& bset note (note *(exp (- (1 / k)))/ k)
  I' Y/ s* I% zset credibility-list (replace-item i credibility-list note)2 J) ^+ C9 k& Z7 v2 ?3 }7 M
set i (i + 1)- ^# k0 K  T0 t) o  a
]
1 Y! q0 i( t5 P) p1 J6 X3 hend% ^3 }" S9 _6 b+ b9 N

' n" Q+ k# D8 ^" a4 I* e+ h5 wto update-global-reputation-list- ~% Q* i: r9 A- `% H2 Z( Y5 }( z
let j 04 `2 P5 Q% m. }: P2 `% X+ |
while[j < people]' ?: j) N1 X/ Q, c3 n1 x1 w
[( X# a/ G) ]* c- E$ ]4 \5 M5 B
let new 0  x8 [0 i9 ]/ F4 }5 y: O9 G3 O% X
;;
暂存新的一个全局声誉
9 w5 q- F. b* dlet i 08 Y) l. B6 c+ E* [7 Y9 L$ I& F8 u
let sum-money 0" h) {& _4 x3 f8 {$ g
let credibility-money 0; H' ~1 d: g0 ?
while [i < people]
+ R/ p! R0 f; k, Q) L[
- }( }2 y( ^- ~1 d: Kset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))3 `3 S' x& T5 j* W. l( }0 n
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))/ c$ ^: Z7 a; \* _
set i (i + 1); |9 N, s9 W; d: c: J. D, H$ m
]1 D# T; A. R$ h# H2 f# d
let k 0
8 k! O: v! z  N; Llet new1 0* H3 U3 x! p$ J% y! a9 M" \( h  v( p
while [k < people]& y+ X9 f9 l" O  _# e
[
& L! c9 H1 Z9 K8 P- bset 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)
7 B! L, `8 ^* H3 m5 sset k (k + 1)
: |' L7 U8 T3 I+ z8 @. f  c]2 u0 g: S  P$ I5 u
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 5 b- J# |# n$ K$ h, _: h
set global-reputation-list (replace-item j global-reputation-list new); i7 B% ]0 q& y! _# R
set j (j + 1)6 U, B) E: X: C/ g: P1 n' `* }  p
]" t7 b% R$ H# @' j# Q. D8 z$ J6 h' j* a
end/ O7 g! A6 @8 R: ^4 W

- j2 ^) z& H. E5 o, `/ Q% R% {/ X* j; W

$ ~! T8 f! ]7 T* I3 Sto get-color
" [2 K0 N3 y6 }
) y( U/ n6 y) U9 u! @2 I' [, |( _% sset color blue
3 Y: N0 Q0 [" t5 G/ f) Z* I8 P
end
: Z% B0 Q6 s" q0 X% z5 x/ T& H1 n) C. q9 a/ n1 ]
to poll-class
. E7 y9 g% B2 a2 n: ?1 w# Xend
' \4 [4 j/ `" G! d" n# b0 E' s+ \4 }/ I: ^3 z
to setup-plot12 B/ [/ A4 r' _1 O4 Y+ k7 a

9 G* x9 Z; r% K1 l/ Yset-current-plot "Trends-of-Local-reputation"

6 x  p0 Z( ?5 D3 J8 H7 T3 U9 e4 z
8 Z% |% }0 w! A0 U" `set-plot-x-range 0 xmax
+ u/ s: `" W2 X" ]; ~/ l2 _' K

7 P  d3 P! `; Dset-plot-y-range 0.0 ymax

0 N" U& _5 W7 T# l3 J1 w& Aend) \# Z0 x2 O6 l

& @! |4 l7 y# F3 zto setup-plot28 g* s3 Y( n, _* _& w$ n
* Y' Y2 d7 @; k& o4 c" _2 s
set-current-plot "Trends-of-global-reputation"

. J: f" D# P5 }8 ?! z$ H! f
( l2 y6 W, d7 `! H6 Eset-plot-x-range 0 xmax
5 J4 f" \0 K2 D; y' _2 a* v
: F5 Q4 D5 D  [! N2 t3 ^6 N- N
set-plot-y-range 0.0 ymax

0 @4 b0 \# V, q; R' oend
7 A! N' t: C) e5 V7 E' R$ [$ J  k/ @: m4 U0 V  }( X( x# ]; l' g
to setup-plot3
: G0 b! P6 y2 @. L
/ o& {  Z& w( ^0 ?. u: {1 yset-current-plot "Trends-of-credibility"

6 L% M# x$ a! J( x+ p4 J7 L; f
! p5 b* v9 |4 A' V( Jset-plot-x-range 0 xmax

! B" j) D9 U! x" _3 T5 c/ \3 w$ {1 X3 j, m+ M
set-plot-y-range 0.0 ymax

' Z% _  q  r4 V( W& ^, b  iend! L. m2 `9 i% F

5 \5 A. t: b/ N7 P. k; ito do-plots9 w; _; o* f. ^3 B, M
set-current-plot "Trends-of-Local-reputation"
- {4 C+ V: l! e% r1 j& Fset-current-plot-pen "Honest service"
) e" O' K0 `  h" |5 ^3 |0 u. Cend
+ ]6 V& c2 P9 n7 H) K/ ^- G+ k% e. [6 z2 y
[ 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.' R/ B! S) ^, K" v" A

* \$ W: C' t5 [* T' [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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